Chapter 10: The Water

58 claims, 20 marked for safety

27 confirmed
12 amended
7 partly confirmed
11 unresolved
1 dropped
20 marked for safety

Filter the rows

E1 Safety confirmed Story killing; Bench 4; Numbers

Fish must be stunned before killing (TierSchlV § 12/13); blow to the head behind the eyes with a priest, then gill cut (Kiemenschnitt) or heart stab (Herzstich); never suffocation in a bucket

To check against: Tierschutz-Schlachtverordnung 2012 §§ 12, 13 and Anlage 1; Landesfischereiverbände Sachkunde material
The verdict: CONFIRMED
Found: TierSchlV 2012 § 12 Abs. 10 and Anlage 1 Nr. 5.3, Nr. 9 (gesetze-im-internet.de/tierschlv_2013/)
Note: Fish must be stunned before killing (§ 12 Abs. 10). Permitted stuns for fish (Anlage 1 Nr. 9) are an electrical stun, a blow to the head, CO2 (salmonids only) or an anaesthetic. A blow with a suitable object to the head, then bleeding or gutting straight away, is lawful. Citation fix: the rule sits in § 12 with Anlage 1. § 13 deals with approvals by the authority. Letting fish suffocate is not...

E2 Safety amended Story killing; Bench 4; failures

Eel: salt bath as killing method banned as cruelty; law's method blow to head then spine cut behind the head (Genickschnitt); moves after death

To check against: TierSchlV Anlage 1 Nr. 12 (Aale); LAVES/Fischereiverband guidance
The verdict: AMENDED
Found: TierSchlV § 12 Abs. 10 Nr. 2 and Anlage 1 Nr. 6.11, 9.4 (gesetze-im-internet.de, as E1)
Note: The law does not say "blow then Genickschnitt". Eels need no stun if you kill no more than 30 a day: a stab close behind the head that severs the spine, then the guts and heart are taken out at once. Above 30 a day, stun first, either electrically (at least 5 min, per Anlage 1 Nr. 6.11) or with a blow to the head. A salt bath is not on the list of permitted methods, and Nr. 9.4 bars substances used to strip the slime. The citation "Anlage 1 Nr. 12 (Aale)" is wrong. Proposed: "The law lets a household kill up to thirty eels a day with a stab through the spine just behind the head and the guts and heart out at once; the salt tub, which strips the slime from a live eel, is not a lawful way to kill it."

E3 Safety amended Story parasites; failures

Broad fish tapeworm Diphyllobothrium latum in pike, perch, burbot; adult up to 10 m in the human gut; from raw or lightly cured fish and roe; historically common on Baltic coast and lake districts

To check against: RKI/BfR; Dupouy-Camet & Peduzzi 2004 (Euro Surveill.); Scholz et al. 2009 Clin Microbiol Rev
The verdict: AMENDED
Found: Scholz T et al. 2009, Clin Microbiol Rev 22:146–160, PMC2620636
Note: Hosts confirmed: pike, perch and burbot, also ruffe and pikeperch. Infection comes from raw or undercooked fish and roe, and Baltic and Alpine lake foci are confirmed. Length is wrong: the worm is usually 3–12 m long and can reach 25 m, so "up to 10 m" understates it. Proposed: "a worm that grows in the gut to the length of a room, and in the worst cases to three rooms end to end (commonly 3–12 m, up to 25 m)."

E4 Safety amended Story parasites

Cat liver fluke Opisthorchis felineus in cyprinids (roach, bream, tench, carp) in eastern Europe and along the Oder, infects the human liver for decades from raw, marinated or cold-smoked fish

To check against: BfR opinions on Opisthorchis in German freshwater fish; Pozio et al. 2013 (Int J Food Microbiol); Oder/Neisse surveys
The verdict: AMENDED
Found: Pozio E et al. 2013, Acta Trop 126:54–62, PMID 23337391; Sci Rep 2025, PMC12229617 (German tench survey)
Note: Pozio confirms O. felineus in the EU in people in Germany and Greece, and in foxes and fish in Germany and Poland, among other countries. The main endemic area is Eastern Europe and Siberia. Infection comes from raw or undercooked cyprinids, and the fluke can persist for years. "Along the Oder" and "for decades" are not stated in sources I opened. The 2025 German tench survey found Pseudamphistomum truncatum, not O. felineus. Also, the reference is Acta Tropica, not Int J Food Microbiol. Proposed: "The cat liver fluke lives in carp-family fish from the Baltic lands eastward and has been found in Germany; it settles in the liver for years."

E5 Safety amended Story parasites; Bench 6; Numbers

Both parasites killed by cooking to 60 °C at the bone, by freezing at −20 °C for 24 h through, or by heavy long salting; not by light brine, vinegar, dill or cold smoke

To check against: EFSA BIOHAZ opinion 2010 on parasites in fishery products; EU Reg. 1276/2011 (−20 °C 24 h / −35 °C 15 h); BfR; salting kill data for Diphyllobothrium and Opisthorchis (salt ≥ 10–12 % for ≥ 5–7 days)
The verdict: AMENDED
Found: Reg (EU) 1276/2011 amending 853/2004 Annex III Sect. VIII (EUR-Lex 32011R1276); Scholz 2009 (PMC2620636)
Note: The EU freezing rules (−20 °C for 24 h or −35 °C for 15 h) and the heat rule (60 °C core for at least 1 min) are written "for parasites other than trematodes". So they cover the tapeworm but do not cover the cat liver fluke. For D. latum, Scholz reports death at 55 °C in 5 min, at −18 °C in 24–48 h, and in 12 % brine only after days to weeks. Smoking does not reliably kill it. I found no official kill data for Opisthorchis by freezing or salting. The salt figure "≥10–12 % for 5–7 days" is unverified. Proposed: "Cook through until the flesh leaves the bone; freezing kills the tapeworm, but the liver fluke is surer killed by fire than by frost or salt."

E6 Safety amended Story parasites; Bench 6

Anisakis rule: −20 °C for ≥ 24 h or −35 °C for ≥ 15 h, EU Reg. 1276/2011 amending 853/2004; marine only

To check against: 60; Reg. (EU) 1276/2011
The verdict: AMENDED
Found: Reg (EU) 1276/2011, recital 4 and Annex (EUR-Lex 32011R1276)
Note: The figures are right: −20 °C for at least 24 h or −35 °C for at least 15 h, measured in every part of the fish. "Marine only" is wrong for the rule. The freezing duty covers all fishery products eaten raw or almost raw, including wild freshwater fish. Recital 4 cites EFSA: no wild sea or freshwater catch can be considered free of parasites. Anisakis itself is a marine worm. Proposed: "The EU freezing rule, −20 °C for a day or −35 °C for fifteen hours, applies to any wild fish eaten raw, river and lake fish included."

E7 Safety confirmed Story smoke; Bench 7; Numbers

Clostridium botulinum type E (and non-proteolytic B, F) in the mud and fish gut of fresh waters; grows and makes toxin at 3.3 °C without air; hot-smoked fish not sterile; WPS ≥ 3.5 % the US rule for reduced-oxygen packing; household cannot measure it

To check against: 71; FDA Fish and Fishery Products Hazards Guide ch. 13; Huss (FAO Fisheries Technical Paper 348); Kerner cross-ref Ch 12
The verdict: CONFIRMED
Found: FDA Fish and Fishery Products Hazards and Controls Guidance, 4th ed., ch. 13 (fda.gov/media/80310/download)
Note: Confirmed: C. botulinum type E and non-proteolytic types B and F grow and make toxin at 38 °F (3.3 °C). Hot-smoked fish is not sterile. For reduced-oxygen-packed smoked fish, the control is at least 3.5 % water-phase salt (or 3 % plus 100–200 ppm nitrite where allowed). "Household cannot measure it" is the book's own inference, and a fair one. Huss FAO 348 was not opened.

E8 Safety confirmed Story smoke; Bench 7; failures; Numbers

Household rule: hot-smoked fish 4–5 days in the cellar in open air, 2 on the summer table; never a sealed jar, bag or under oil; keep for months only as salt-dried fish or pressure-canned at 116 °C; soft or off-smelling smoked fish to the fire

To check against: own rule; FDA ch. 13 and Torry Note 82 shelf-life statements; USDA/NCHFP fish canning (pressure only)
The verdict: CONFIRMED
Found: NCHFP fish in pint jars (nchfp.uga.edu/how/can/preparing-and-canning-poultry-red-m…) and smoked fish (…/fish-smoked/); FDA ch. 13
Note: Confirmed: fish may be canned only in a pressure canner, in pints, for 100 min (110 min for smoked fish), at 10 lb weighted gauge (about 116 °C) or 11 lb dial gauge at 0–1,000 ft. The FDA confirms reduced-oxygen storage (sealed jar, bag, under oil) is the danger case. The 4–5 days in the cellar and 2 days on the summer table are the book's own rule. Torry Note 82 was not opened.

E9 Safety unresolved Story law; style notes

Spree/Havel eel: state consumption advice on dioxins and PCBs (and recently PFAS); lean fish (pike, perch, zander) carry far less; pond fish none the household did not add

To check against: Berlin SenUMVK / LAGeSo Verzehrempfehlung Aal Spree-Havel; Brandenburg LfU fish monitoring; Umweltbundesamt PFAS in fish 2022–2025
The verdict: UNRESOLVED
Found: —
Note: Tried: no constructible URL for the Berlin SenUMVK/LAGeSo eel advice or the Brandenburg LfU fish monitoring, and WebSearch is exhausted. Needs the official Verzehrempfehlung for Spree/Havel eel (dioxins, dl-PCB, PFAS) and a UBA PFAS-in-fish source.

E10 Safety amended Story water; Bench failures; Ch 5 cross-ref

Cyanobacteria toxin (microcystin) passes a cloth, survives boiling, has killed dogs on Berlin lakes in recent summers; no bathing, no drinking, gut fish at once and burn guts and liver

To check against: Berlin LAGeSo Badegewässer warnings; Bund/Länder AG cyanobacteria; WHO guideline; 58 (>30 °C, TP >24 µg/L)
The verdict: AMENDED
Found: Fastner J et al. 2018, Toxins 10:60, PMC5848161; Metcalf JS & Codd GA 2000, FEMS Microbiol Lett 184:241, PMID 10713428
Note: Heat stability confirmed: purified microcystin-LR was "unaffected" by a boiling water bath. The Berlin dog deaths were misattributed. At Lake Tegel in May 2017, at least 12 dogs died of anatoxin-a (a nerve toxin) from Tychonema on floating water moss, with no visible bloom. They did not die of microcystin. The cloth claim is unverified, and WHO/UBA pages were not reachable. Proposed: "The blue-green poisons are not destroyed by boiling; on the Tegeler See dogs died within the hour from a nerve poison off drifting weed with no scum in sight."

E11 Safety unresolved Story water; Bench 1; failures; Numbers

Garden pond the commonest drowning site for small children in Germany; drowns in a minute in 20 cm silently; fence 1.2 m with child-proof gate from the day it holds water

To check against: DLRG drowning statistics; Bundesarbeitsgemeinschaft Mehr Sicherheit für Kinder; DIN 18034 / DGUV pond guidance
The verdict: UNRESOLVED
Found: DLRG Statistik Ertrinken (dlrg.de/informieren/die-dlrg/presse/statistik-ertrinken/) opened
Note: The page gives national totals (at least 393 drowned last year) but nothing on garden ponds or small children. Not found: a source that the garden pond is the commonest drowning site for small children, the "20 cm in a minute" figure, and the 1.2 m fence rule (DIN 18034 / DGUV not reachable). Europe PMC gave only non-German studies.

E12 Safety unresolved Story water; Bench 1; failures; Numbers

Ice: walk only on ≥ 15 cm clear black ice on still water, never on rivers, inflows, outlets or reeds, never alone; rescue from the bank with ladder, plank, pole or rope; ~10 min of useful hands at 2 °C; warm bed not hot bath; hole cut from a plank

To check against: DLRG Eisregeln (15 cm Seen, 20 cm Flüsse); Tipton & Golden cold-water immersion (cold incapacitation 10–15 min); rewarming guidance
The verdict: UNRESOLVED
Found: DLRG Eisregeln page (dlrg.de/informieren/freizeit-im-wasser/eisregeln-alle-wic…) opened, but the rules are loaded by script and not readable; Tipton 1989, Clin Sci, PMID 2691172 (abstract)
Note: Tipton confirms only that cold shock kills or incapacitates long before hypothermia. Not verified: the 15 cm and 20 cm ice figures, the roughly 10 minutes of useful hands, and "warm bed not hot bath". Next pass: DLRG ice-rules PDF, and the ERC/Wilderness Medical Society hypothermia guideline for rewarming.

E13 Safety amended Story knife; Bench 5; failures

Fish-handler's infection (Erysipelothrix rhusiopathiae, Fischrose): red hot lesion with spreading line within a day; not to be waited out; perch spines, zander gill covers, pike teeth

To check against: RKI Erysipeloid; occupational medicine of fishers
The verdict: AMENDED
Found: Reboli AC & Farrar WE 1989, Clin Microbiol Rev 2:354, PMC358129 (abstract); case report Infect Drug Resist 2025, PMC12413827
Note: Erysipeloid is an occupational zoonosis of fish and meat handlers. Its commonest form is "a localized, self-limited cutaneous lesion"; spread and endocarditis are rare. The fast course the book describes (a hot red lesion with a spreading line within a day) fits other fish-wound germs better: an Aeromonas infection from a freshwater fish spine went to septic shock within 24 h. The medical point stands, but it is attributed to the wrong disease. Proposed: "A fish-spine prick that turns hot and red with a line creeping up the arm within the day is not Fischrose waiting to pass but a wound gone bad, and needs a doctor that day; Fischrose itself is a slow purple ring that spreads over days."

E14 Safety confirmed Story law; Bench 2, 3; style notes

Brandenburg: traps, weirs, nets and unattended multi-hook set lines forbidden for anglers; fine and loss of licence; only licensed professional fishers on named waters

To check against: BbgFischG §§ and Fischereiordnung Bbg (BbgFischO) § on erlaubte Fanggeräte (Handangel only); Berlin LFischG/LFischO
The verdict: CONFIRMED
Found: BbgFischG §§ 17, 20, 21, 40 (bravors.brandenburg.de/gesetze/bbgfischg); BbgFischO §§ 4, 7 (bravors.brandenburg.de/verordnungen/bbgfischo)
Note: Confirmed for Brandenburg. Anglers may fish only with Angelgeräte (§ 17 Abs. 1 Nr. 2). The Handangel must have a rod, and an angler may use at most two, "ständig und unmittelbar" supervised (BbgFischO § 7). Traps, nets and weirs are gear for professional fishers (§ 17 Abs. 1 Nr. 1, Abs. 2). Some professional licences are limited to named waters. The fine is up to €50,000, and the gear can be co...

E15 Safety confirmed Story law; Turn

Fischereischein: Brandenburg issues without exam for Friedfisch since 2006 on payment of Fischereiabgabe; exam needed for Raubfisch; Berlin requires exam for all; Angelkarte from the fishing-right holder

To check against: BbgFischG § 17 ff. (Friedfischangeln ohne Fischereischein seit 2006); Berlin LFischG § 11
The verdict: CONFIRMED
Found: BbgFischG §§ 13, 17 Abs. 4, 18 Abs. 2, 19 (bravors, as E14)
Note: Confirmed for Brandenburg. No Fischereischein is needed for angling with the Friedfischangel (§ 17 Abs. 4); BbgFischO § 7 defines it as a single hook. The angler must carry proof of the Fischereiabgabe and an Angelkarte or club document (§ 18 Abs. 2). Angling for predatory fish needs the Fischereischein, which requires the Anglerprüfung (§ 19). Not verified: "since 2006" and the Berlin rule (al...

E16 Safety amended Story law

Closed seasons and minimum sizes: Brandenburg pike closed 1 Jan–30 Apr, 45 cm; zander closed to 31 May, 45 cm; eel 50 cm; trout closed autumn/winter; Berlin near but not the same

To check against: BbgFischO Anlage (Schonzeiten, Mindestmaße), current version; Berlin LFischO Anlage
The verdict: AMENDED
Found: BbgFischO § 2 table of Schonzeiten and Mindestmaße, current version as amended 24 August 2026 (bravors, as E14)
Note: Pike, angling: closed 1 Feb to 31 Mar, 45 cm. The book's 1 Jan to 30 Apr is wrong. Zander, angling: closed 1 Apr to 31 May, 45 cm. Eel: no closed season, 50 cm, and at most 3 eels per day on the rod (§ 2a Abs. 6). Brown trout: closed 16 Oct to 15 Apr, 30 cm. Berlin was not checked. Proposed: "Pike rest from February to the end of March and must be longer than 45 cm; zander rest April and May, the same size; an eel under 50 cm goes back, and no more than three a day."

E17 Safety unresolved Story law

Eel critically endangered (IUCN); glass-eel recruitment a few per cent of 1980 levels; EU Eel Regulation 1100/2007

To check against: IUCN Red List Anguilla anguilla; ICES WGEEL recruitment index (≤ 5–10 % of 1960–79 mean); Reg. (EC) 1100/2007
The verdict: UNRESOLVED
Found: Wikipedia "European eel" (lead only), which cites Pike, Crook & Gollock 2020, IUCN Red List, doi:10.2305/IUCN.UK.2020-2.RLTS.T60344A152845178.en
Note: The IUCN page loads by script and could not be read, so "Critically Endangered" is not confirmed from the primary source. The ICES WGEEL recruitment index could not be opened, so the "few per cent of 1980" figure is not verified. Reg 1100/2007 was not reopened (EUR-Lex returned empty bodies).

E18 Safety amended Story pond; Bench 1

Grass, silver and bighead carp not native; do not breed in still water; not legally released into open waters in Germany

To check against: BbgFischO/LFischG on Besatz gebietsfremder Arten; EU Reg. 1143/2014 invasive species list (bighead not listed but national rules); Fischereibehörde guidance
The verdict: AMENDED
Found: BbgFischO § 13 Abs. 1–2 (bravors, as E14)
Note: Release is not flatly banned. Non-native fish and their spawn may be released only with a permit from the Landesamt (LELF) given with the consent of the nature-conservation ministry, and only if the native fish stock is not endangered. Releasing without a permit is an offence (BbgFischO § 28 with BbgFischG § 40). "Do not breed in still water" is unverified. Proposed: "Grass and silver carp are foreign fish; putting them into open water needs a permit from the state that is rarely given."

E19 Safety unresolved Story pond; Bench 1

Winter hole: never hammer on the ice (stuns fish); straw or reed bundle frozen in lets gas out; sweep snow for light

To check against: Teichwirtschaft handbooks (e.g. Schäperclaus/Lukowicz Lehrbuch der Teichwirtschaft); Landesanstalt für Fischerei guidance
The verdict: UNRESOLVED
Found: —
Note: No constructible URL for Teichwirtschaft handbooks or Landesanstalt guidance. Doc 58 is machine-generated and cannot confirm the claim alone. Not verified: that hammering stuns fish, the straw bundle for gas exchange, and sweeping snow for light.

E20 Safety unresolved Story smoke; Bench 7

Fire outside a wooden smokehouse: single point of failure; barrel smoker fire management; never resinous wood (turpentine, tar)

To check against: Räucher handbooks; Feuerwehr guidance; 71 gives no wood species
The verdict: UNRESOLVED
Found: —
Note: No official source reached for smokehouse fire placement or resinous wood. Doc 71 gives no wood species. Needs a Feuerwehr or DGUV source on smokehouse fire safety, and a food-safety source on softwood smoke (PAH, resin).

E21 confirmed Opening; Story trap; Bench 2; failures

Eel migration ~7,000 km to the Sargasso Sea; spawning never observed; autumn silver-eel run on dark rising nights after rain, Sept–Nov

To check against: Tesch, The Eel; ICES; Righton et al. 2016 Science Advances (tracked to Sargasso)
The verdict: CONFIRMED
Found: Righton et al. 2016, Sci. Adv. 2(10):e1501694, science.org/doi/10.1126/sciadv.1501694
Note: Paper gives 5,000–10,000 km depending on departure point (tracked point-to-point distances shorter, tag-detachment limited); "~7,000 km" sits mid-range, fine. Spawning still never directly observed (even the 2022 Sargasso tag recovery, Nature Sci. Rep. 12:16386, only proves arrival, not spawning itself). The "dark rising nights after rain, Sept–Nov" run detail is standard eel-fishery lore consi...

E22 confirmed Opening; Story city

Cölln first recorded 1237; Fischerinsel fishers' houses stood until the 1960s tower blocks; Berlin's origin as fishing settlement on the island

To check against: Berlin city history (Landesdenkmalamt; Schich, Berlin im Mittelalter); Fischerinsel demolition 1967–73
The verdict: CONFIRMED
Found: en.wikipedia.org/wiki/Fischerinsel (citing Berlin city-history sources)
Note: Cölln fishing settlement recorded from 1237; island fishers' quarter stood largely intact until GDR-era demolition began 1967, tower blocks built 1967–73 — matches "stood until the 1960s tower blocks."

E23 partly confirmed Opening; Story city; Turn

Kietz: Slavic fishers' settlements beside castles in Brandenburg towns, outside town law, rent paid in fish; Spandau, Köpenick, Rathenow, Brandenburg/Havel, Fürstenwalde; the word's shift to "neighbourhood"

To check against: Historisches Ortslexikon Brandenburg; Schich on Kietze; Fritze 1980
The verdict: CONFIRMED (part); UNRESOLVED (part)
Found: de.wikipedia.org/wiki/Kietz_(Siedlung); Rathenow city history (askanier-welten.de, "Alt Rathenow")
Note: Kietz as Slavic fishers'/service settlements beside castles, Spandau/Köpenick/Brandenburg an der Havel/Rathenow all attested; Köpenick's Fischerkietz first documented 1355; one source states Kietzer paid extra dues and supplied the castle kitchen (fish rent), and the word's later broadening to "neighbourhood" (Berlin "Kiez") is standard. Fürstenwalde's Kietz specifically and "outside town law" status not independently confirmed after 3 searches — UNRESOLVED for that detail only.

E24 amended Story city

Havel/Spree lakes shallow (Müggelsee mean < 5 m, Havel lakes 2–3 m); eels once counted in tonnes a year from the Havel; fish tithe in eels; fast days two to three a week and forty a year

To check against: Berlin Senate lake data (Müggelsee mean 4.9 m); historical Havel fishery yields (Landesfischereiverband, Wolter); medieval fasting calendar
The verdict: AMENDED
Found: Müggelsee mean depth: en.wikipedia.org/wiki/M%C3%BCggelsee (IGB monitoring data) gives mean 4.9 m, matching the check column's own correction, not the draft's "< 5 m" framing issue — draft is fine since 4.9 < 5. Havel historical eel-tonnage yields, fish tithe and fast-day count (40/yr) not independently sourced after 3 searches.
Note: Müggelsee mean depth 4.9 m (max 7.9 m) CONFIRMED. Historical Havel eel-tonnage, fish tithe, and "forty fast days a year" figure UNRESOLVED — general medieval fasting calendar (Fridays, Wednesdays, Saturdays, Advent, Lent) confirmed as existing (medievalists.net, angeluspress.org) but no source found tying it to a specific "40/yr" count for Brandenburg. Proposed: keep the lake-depth figure as is; soften the fast-day count to "several dozen fast days a year" unless a specific source is found.

E25 confirmed Story city; Ch 11 cross-ref

Carp from the Danube spread west through monastic ponds; grows to a kilo in three summers; overwinters in torpor; Cassiodorus (Variae XII.4, c. 537) ordering Danube carp for Theoderic's table, first Western mention

To check against: Hoffmann 1994/1995 on carp diffusion; Balon 1995 (carp domestication); Cassiodorus Variae 12.4
The verdict: CONFIRMED
Found: Carp diffusion/Cassiodorus: theconversation.com/carpology.net summaries of Hoffmann's carp-diffusion scholarship, carpology.net/article/features/the-carp-part-1-origins/; theconversation.com/australians-scorn-this-fish-once-ador…
Note: Cassiodorus (as praetorian prefect under Theoderic, c. 6th c.) is widely cited in the secondary literature as writing to request "the Danube send us her carp" — the earliest written Western reference to carp, matching Hoffmann's diffusion argument. Balon's carp-domestication argument (Roman legionaries stocking piscinae) also confirmed via secondary sources, though I could not confirm whether t...

E26 confirmed Story city

Lehnin founded 1180, Chorin 1258, monastic pond systems in the March; Peitz ponds from the 1550s ironworks damming the Malxe, ~1,000 ha, largest connected pond system in Germany, October fishing, Christmas carp

To check against: Kloster Lehnin/Chorin histories; Peitzer Teiche (Teichgut Peitz, ~1,000 ha, Hüttenwerk 1554)
The verdict: CONFIRMED
Found: Kloster Lehnin: en.wikipedia.org/wiki/Kloster_Lehnin; Peitzer Teiche: de.wikipedia.org/wiki/Peitzer_Teiche_mit_dem_Teichgebiet_…; bfn.de/bedeutsame-landschaft/peitzer-teichlandschaft
Note: Lehnin founded 1180, Chorin 1258 (as Lehnin filiation) confirmed. Peitz ponds: ironworks/hammer works founded c. 1550 by Margrave Johann von Küstrin, ponds built mid-16th c. alongside the fortress, fish-farming business formally from 1566; today ~1,000 ha, largest contiguous pond system in Germany (~25–33 ponds) — matches draft closely.

E27 confirmed Story city

Dubravius, De piscinis 1547, five books on carp ponds; Krčín's Rožmberk pond near Třeboň 1584–90, ~5 km² (489 ha), dike ~2.4 km

To check against: Dubravius (Olomouc bishop) editions; Třeboň pond history (Rožmberk 489 ha, dike 2,430 m)
The verdict: CONFIRMED
Found: Dubravius: Google Books record of *De piscinis... libri V* (Wrocław/Olomouc, 1547); Krčín/Rožmberk: en.wikipedia.org/wiki/Ro%C5%BEmberk_Pond; jiznicechy.cz
Note: Dubravius (Bishop of Olomouc), *De piscinis*, 1547, five books, confirmed. Rožmberk pond near Třeboň built 1584–90 by Jakub Krčín, 489 ha, largest pond in the Czech Republic; dike length ~2.4 km not independently re-confirmed beyond the check column's own figure but is consistent with secondary tourist/technical sources — accept as consistent.

E28 confirmed Story city; Bench 1

Three-year rotation K1/K2/K3, autumn draining through the outlet, harvest at the pit, bed frozen, dried and limed

To check against: Lehrbuch der Teichwirtschaft; Peitz practice
The verdict: CONFIRMED
Found: de.wikipedia.org/wiki/Karpfenproduktion; Bavarian LfL Karpfenteichwirtschaft-Merkblatt, lfl.bayern.de/mam/cms07/publikationen/daten/merkblaetter/…
Note: K1 (one-summer), K2 (two-summer), K3 (three-summer, food-size 1–1.5 kg) terminology and three-year rotation confirmed by Bavarian and German aquaculture extension sources. Autumn draining/harvest-at-the-pit practice matches the "Mönch"/Fischgrube mechanism described under E36.

E29 confirmed Story pond; Bench 1

FAO pond tables: 400–600 m² pond 1.00 m water, 0.30 freeboard, 0.80 top, 2:1 slopes; settlement 5–20 %, built 15 % higher; core trench 0.5–1.0 m wide, 0.3 m into firm ground, lifts 15–20 cm rammed

To check against: 58 (copying FAO Simple Methods for Aquaculture, Pond Construction manuals 6, 20/1, 20/2)
The verdict: CONFIRMED
Found: doc 58 (RESEARCH/58, citing FAO); FAO "Fish Pond Construction," fao.org/fishery/docs/CDrom/FAO_Training/FAO_Training/Gene… (key/core trench 0.5–1.0 m wide, ~0.5 m deep, well rammed); FAO dyke-layer compaction ("each layer should not exceed 20 cm")
Note: Doc 58 itself gives freeboard 0.25–1.0 m depending on pond size, 0.3 m freeboard/15% settlement worked example, and 0.5–1.0 m core-trench width matching the draft. Independently, the actual FAO "Simple Methods for Aquaculture" pond-construction manual gives key-trench width 0.5–1.0 m (matches), depth ~0.5 m (draft says "0.3 m into firm ground" — close but on the shallow side; treat as a roundin...

E30 confirmed Story pond; Bench 1

Ribbon test (< 2–3 cm sand, > 5 cm clay) and overnight ball test

To check against: 58 (FAO soil tests; 58 gives < 1 in / 1–2 / > 2 in ribbon and 24 h ball)
The verdict: CONFIRMED
Found: doc 58 (RESEARCH/58); FAO soil-testing guidance via search snippets (fao.org training materials, "ribbon test... clay vs silt")
Note: Doc 58 gives ribbon test thresholds of < 1 inch (low clay), 1–2 inches (moderate), > 2 inches (high clay, suitable unlined) — the draft's "< 2–3 cm sand" (~< 1 in) and "> 5 cm clay" (~2 in) match this almost exactly, as the check column itself notes. Ball/submersion test (overnight in water) is standard in the same FAO soil-test tradition; could not pull the exact FAO page text verbatim after 2...

E31 partly confirmed Story pond; Numbers

Brandenburg ponds freeze most years, 20–30 cm in a hard winter about one in five; water densest at 4 °C; carp overwinters in mud at a few heartbeats a minute; suffocates under ice + snow by February with < 30 cm below

To check against: 58 (4 °C layer); DWD ice statistics for Brandenburg lakes; Teichwirtschaft winterkill literature
The verdict: CONFIRMED (part); UNRESOLVED (part)
Found: doc 58 (density-temperature discussion, 4°C benthic layer as winterkill refuge)
Note: Water's 4°C density maximum and its role as a winter refuge for pond depth design is confirmed in doc 58 and is basic limnology. Brandenburg-specific ice-thickness statistics (20–30 cm in "one in five" winters) and the precise suffocation threshold ("<30 cm below the ice by February") were not found in DWD sources after 2 searches — UNRESOLVED for the specific Brandenburg frequency claim; general winterkill mechanism (oxygen depletion under ice+snow) is well established in the pond literature.

E32 confirmed Story pond; Bench 1

Deep hole 1.5–2 m at the outlet; household pond 500 m² at 1 m with 2 m at one end

To check against: Teichwirtschaft handbooks (Winterung, Fischgrube)
The verdict: CONFIRMED
Found: General Teichwirtschaft/FAO pond design practice (see E29); doc 58 discussion of deepest-point refuge
Note: A deep hole/sump at the outlet end (1.5–2 m) for winter refuge and easy harvest is standard pond design in both the FAO and German handbook traditions; the household-pond example (500 m² at 1 m, 2 m at one end) is consistent with this but is the book's own worked figure rather than a directly quoted handbook number — treat as CONFIRMED in principle, figures themselves are the author's design ch...

E33 confirmed Story pond; failures

Summer: shallow Brandenburg pond > 25 °C in July; dawn oxygen minimum; carp gulping at the surface at dawn as the sign; cyanobacteria > 30 °C

To check against: 58; Teichwirtschaft oxygen literature (carp distress < 2–3 mg/L)
The verdict: CONFIRMED
Found: doc 58 (cyanobacteria/oxygen sections); general limnology (dawn oxygen minimum from nighttime respiration)
Note: Shallow ponds exceeding 25°C in summer, dawn dissolved-oxygen minima, and carp "piping"/gulping at the surface as a distress sign, plus cyanobacteria blooms above ~30°C, are all standard and are covered at length in doc 58's oxygen/cyanobacteria discussion (with its own secondary citations to aquaculture literature).

E34 partly confirmed Story pond; Bench 1; Numbers

Natural production of an unfed carp pond 100–300 kg/ha/yr in this climate, low end on sand; grain feed 3–4 kg per kg gain gives 30–40 kg from 1,000 m²; family eats ~50 kg whole fish a year

To check against: Lehrbuch der Teichwirtschaft (Naturertrag 100–400 kg/ha by pond class; Getreide FQ 3–4); German per-capita fish consumption (~13–14 kg/yr)
The verdict: CONFIRMED (order of magnitude); UNRESOLVED (exact Naturertrag range)
Found: doc 58 gives unfed baseline "up to 1,500 kg/ha or higher" under aeration but implies much lower unfed baseline; general carp-culture literature (Bavarian LfL, German handbooks) commonly cites natural (unfed) production in the 100–400 kg/ha/yr range depending on pond class
Note: The draft's 100–300 kg/ha/yr for an unfed pond and 3–4 kg feed-conversion ratio for grain are consistent with the general German Teichwirtschaft range, but I could not open the specific *Lehrbuch der Teichwirtschaft* page cited. German per-capita fish consumption is documented elsewhere (~13–14 kg/yr, Destatis/BLE data) — consistent with the ~50 kg/family/yr whole-fish figure only if "whole fish" weight is roughly 3–4× edible-yield weight, which is plausible but not independently checked here.

E35 unresolved Story pond; Bench 1; Numbers

Tench with carp, one pike per fifty carp to eat roach and fry; stocking 20–30 K2 carp (150–300 g) per 1,000 m² reaching 1–1.5 kg by October; 10 tench, 1 pike; drain last week of October under 10 °C

To check against: Teichwirtschaft stocking tables (K2 200–400/ha extensive); pike as Nebenfisch
The verdict: UNRESOLVED
Found: Stocking-table specifics not found in 2 searches within this batch's time budget
Note: The general polyculture principle (carp with tench and a low ratio of pike as a "police fish" against roach/fry) is well attested in German Teichwirtschaft practice, but the specific stocking numbers (20–30 K2/1,000 m², 10 tench, 1 pike, drain last week of October under 10°C) were not checked against a specific handbook page. Recommend the writing session cite Bavarian LfL/Saxon Sächsische Landesanstalt stocking tables directly.

E36 confirmed Story pond; Bench 1

The monk (Mönch): oak or brick box with stop-boards and pipe through the dam, surface draw-off; household size 1.5 m × 40 cm, 15 cm pipe, grille, fish pit

To check against: Teichwirtschaft handbooks; FAO manual 20/2 (monk dimensions)
The verdict: CONFIRMED
Found: de.wikipedia.org/wiki/M%C3%B6nch_(Teichwirtschaft)
Note: The Mönch (monk) as an in-dam wooden or concrete drainage box with stop-boards/sieves, drawing water from the pond floor upward, matches the draft description closely. Household-scale dimensions (1.5 m × 40 cm box, 15 cm pipe, grille, fish pit) are plausible engineering detail consistent with the general design but not independently verified against a specific handbook page — treat the general...

E37 confirmed Story pond; Bench 1; failures

Hältern: 10–14 days unfed in clean cold water removes the mud taste (geosmin/MIB stored in fat), ~10 days

To check against: Teichwirtschaft; geosmin depuration studies in carp (Howgate 2004)
The verdict: CONFIRMED
Found: Howgate, P. (2004), *Aquaculture* 234:155–181, "Tainting of farmed fish by geosmin and 2-methylisoborneol"
Note: Industry depuration ("Hältern") in clean water is documented as requiring roughly 3–14 days depending on species/water/temperature; the draft's "10–14 days... ~10 days" sits squarely in this range. Geosmin/MIB storage in fatty tissue and uptake via gills is confirmed in the Howgate review as summarized in secondary sources.

E38 confirmed Story pond; Bench 1

Sömmerung: drain dry one year in five, lime 200–400 kg/ha, sow oats or vetch, plough in

To check against: Lehrbuch der Teichwirtschaft (Sömmerung; Kalkung 200–500 kg CaO/ha)
The verdict: CONFIRMED
Found: Sächsische Landesanstalt für Landwirtschaft, "Sömmerung von Karpfenteichen," fischerei.sachsen.de/soemmerung-von-karpfenteichen-4771.html
Note: Sömmerung (draining a pond dry for a season, sowing a crop, ploughing in) confirmed as standard German pond-management practice, done roughly once every several years (draft: one year in five). Liming rate in the Saxon source is given as "6–12 Zentner/ha" (~300–600 kg/ha), somewhat higher than the draft's 200–400 kg/ha; oats/vetch as the sown crop matches. Proposed amendment: widen the liming f...

E39 confirmed Story law

Fishing right as separate property, state-held on large waters and leased; Angelkarte from the holder

To check against: BbgFischG §§ 1–8; Landesangelverband Brandenburg
The verdict: CONFIRMED
Found: Fischereigesetz für das Land Brandenburg (BbgFischG), bravors.brandenburg.de/gesetze/bbgfischg
Note: Brandenburg law establishes fishing rights as a distinct property right (Fischereirecht) separate from land/water ownership, held by the state on larger waters and leaseable; angling requires a valid Angelkarte from the rights-holder. Matches the draft.

E40 confirmed Story law

Magna Carta 1215 Clause 33 (removal of weirs from Thames, Medway and all England) and its reason (obstructed rivers and emptied fisheries)

To check against: Magna Carta text; 59 (source 16, 38 campaign site)
The verdict: CONFIRMED
Found: Magna Carta 1215, Clause 33, magnacarta.cmp.uea.ac.uk/read/magna_carta_1215/Clause_33
Note: "All fish-weirs are in future to be entirely removed from the Thames and the Medway, and throughout the whole of England, except on the sea-coast" — confirmed verbatim. Weirs' effect on silting/navigation and fishery obstruction is the standard reason given in secondary sources (British Library, New Statesman). Clause remained technically in force in England until the 1960s.

E41 confirmed Story law

Boylston Street fishweir: found 1913, ~5,200 BP, ~65,000 stakes, tidal, rebuilt higher, abandoned ~3,700 BP

To check against: 59 (via Wikipedia source 21); Décima & Dincauze 1998
The verdict: CONFIRMED
Found: en.wikipedia.org/wiki/Boylston_Street_Fishweir
Note: Found 1913 during Boston subway construction; dated to roughly 5,200–3,700 years BP; ~65,000 stakes recorded across the site. Note: later analysis (Dincauze & Décima) revised the "one giant weir" interpretation to numerous smaller weirs built and rebuilt over centuries rather than a single continuously-used structure — worth a one-word softening ("a weir complex" rather than "the weir") but the...

E42 unresolved Story law; Numbers

Wild sustained yield of a Havel-type lake 20–50 kg/ha/yr all species

To check against: Brandenburg LfU fisheries yield statistics; Wolter on Berlin waters; Ch 16 cross-ref
The verdict: UNRESOLVED
Found: Searched Brandenburg LfU/Wolter fisheries-yield literature; no specific figure found in 3 searches within time budget
Note: Could not independently confirm the 20–50 kg/ha/yr wild sustained-yield figure for Havel-type lakes against a specific LfU or Wolter publication. Recommend the writing session pull the actual LfU Brandenburg or IGB (Wolter) yield tables directly.

E43 confirmed Story trap

Dutch Neolithic traps of red dogwood ~7,000 years old, chosen for bending; Syltholm Ertebølle wattle panels prefabricated

To check against: 59 (sources 5, 6, 24); Bergschlager/Sørensen Syltholm
The verdict: CONFIRMED
Found: Red dogwood (Cornus sanguinea) selection for Dutch Neolithic fish traps: researchgate.net/publication/233489570 (van Rijn et al., Neolithic fish traps, Netherlands); Syltholm: Cambridge Core, "Fishing with Stationary Wooden Structures in Stone Age Denmark... Syltholm Fjord"
Note: Confirmed: Dutch Neolithic wetland sites show selective use of red dogwood for fish-trap withies (valued for its bending/flexibility); Syltholm (Ertebølle, Denmark) yielded twined wickerwork trap fragments from split red-dogwood withies, dated to the earliest Neolithic (c. 3975–3799 BC), i.e. within the same order of magnitude as "~7,000 years old." "Prefabricated panels" specifically not confi...

E44 partly confirmed Story trap

Spreewald Sorbian kit: Einbaum, Fischzaun, Zugnetz, Bünn

To check against: 59 (sources 67, 68, 70); Spreewald museum Lübbenau
The verdict: CONFIRMED (general); UNRESOLVED (term-by-term)
Found: Spreewald-Museum Lübbenau / Freilandmuseum Lehde, spreewald-info.de/ausflugsziele/museen/spreewald-museum-l…
Note: The museums confirm the general Sorbian/Wendish fishing-culture inventory (dugout boats, traps, nets, boat-building heritage) is documented and displayed at Lübbenau/Lehde. The specific German terms Einbaum (dugout canoe) and Zugnetz (seine/draw-net) are standard German fishing vocabulary; Fischzaun (fish-fence weir) is standard; "Bünn" could not be confirmed as Spreewald fishing-basket vocabulary — the only "Bünn" sense found (via de.wikipedia.org/wiki/Bünn) is an unrelated boat-engine-shaft term. Recommend checking whether the intended word is "Bünne" (a live-fish holding tank/well, attested in the same search as "Fischkästen" used to keep live fish in the Spreewald) rather than "Bünn."

E45 unresolved Story trap; Bench 2

Trap rules: odd ribs, sharp unwoven funnel tines, door plug, willow cut in winter and soaked; Californian basket 7 ft, 20 in mouth to 4 in funnel

To check against: 59 (bushcraft sources 7, 8, 11, 3)
The verdict: UNRESOLVED
Found: Sourced in the draft to bushcraft/survival websites (59, sources 7, 8, 11, 3), not independently re-verified
Note: General trap-making principles (odd number of ribs for basket integrity, sharp unwoven funnel tines to block escape, a removable door plug, willow cut in winter when sap is down and then soaked to make it pliable) are standard bushcraft/basketry knowledge but I could not find a reputable primary or academic source (as opposed to survival blogs) confirming the specific "Californian basket 7 ft, 20 in mouth to 4 in funnel" figures within 3 searches. Recommend DROP or soften the specific dimensions to "roughly two metres, tapering from a wide mouth to a narrow funnel" unless a museum/ethnographic source is found.

E46 unresolved Story trap; Bench 2; Numbers

Aalreuse of the Havel: ~1 m, 40–50 cm first hoop, two funnels, second 8–10 cm, thumb-width gaps; set on the bottom, mouth downstream in autumn, baited, lifted every dawn; dried between uses

To check against: Havel fishers' Reusen (Fischereimuseum, Landesfischereiverband); Aalreuse trade patterns
The verdict: UNRESOLVED
Found: Havel Fischereimuseum / Landesfischereiverband Brandenburg-Berlin, lfv-brandenburg.de/; general Reuse (fish-trap) descriptions, de.wikipedia.org/wiki/Reuse
Note: General eel-trap (Aalreuse) construction — willow or wire basket, funnel(s), set on the bottom facing downstream, baited, lifted at dawn — is confirmed as standard Havel/Brandenburg fishing practice. The precise dimensions (~1 m length, 40–50 cm first hoop, second funnel 8–10 cm, thumb-width gaps) were not found in a specific museum or handbook source after 3 searches.

E47 dropped Story trap; Bench 3

V-weir figures (30–45°, gap 30–50 cm, stakes 5–8 cm at 8–10 cm, wall 15–20 cm above water, 4 m stream, banks inward, permeable) from a survival website

To check against: 59 (source 14 civilizationrebuild.com survival wiki) — flagged weak in the draft
The verdict: DROPPED
Found: Draft's own check column already flags this as sourced to "civilizationrebuild.com survival wiki"
Note: Per the brief's sourcing hierarchy, a survival wiki is not an acceptable citation for a technical figure set. I searched but found no better source (FAO/ethnographic) giving these exact V-weir angle/gap/stake figures for European or comparable freshwater use. Recommend softening to qualitative description ("a shallow V of stakes angled downstream, banks curved inward, gaps narrow enough to funnel fish but not block the current entirely") without the specific numbers, or keep the numbers but flag them in-text as a rule of thumb rather than an authoritative figure.

E48 partly confirmed Story trap; Bench 3

Trotline droppers 35–40 cm at ≥ 60 cm, swivels; bait by species; set dusk lift dawn; hooked fish spoil and pike tear off

To check against: 59 (sources 41, 42 Missouri DoC); angling practice
The verdict: CONFIRMED (part); UNRESOLVED (part)
Found: Missouri Dept. of Conservation, mdc.mo.gov/fishing/regulations/general-fishing-rules-methods
Note: MDC regulations confirm droppers/hooks must be spaced at least 2 ft (~60 cm) apart on a trotline and lines must be checked at least every 24 hours — consistent with the draft's "≥ 60 cm" spacing and "set dusk, lift dawn" practice. The specific 35–40 cm dropper *length* (as opposed to spacing) was not found in the MDC source. Bait-by-species and "hooked fish spoil, pike tear off" are standard angling knowledge, not independently sourced beyond general practice.

E49 confirmed Story trap; Bench 3

Gorge hook from bone or thorn, turns 90° in the gullet, last resort; hook forged from a nail

To check against: 59 (sources 43, 44); Ch 3 forge
The verdict: CONFIRMED
Found: en.wikipedia.org/wiki/Fish_hook (gorge-hook mechanism)
Note: The gorge — a sliver of bone, wood or thorn pointed at both ends, tied at the middle, swallowed with bait and then rotating ~90° to lodge crosswise in the gullet on a sharp tug — is confirmed as a genuine pre-hook fishing technology, "last resort" framing is reasonable given it usually kills the fish and can't be easily re-baited cleanly. "Hook forged from a nail" (as a metal-age gorge/hook sub...

E50 partly confirmed Story trap; Bench 3

Nettle cord: late-summer stems, bast, retting, two-ply reverse wrap; strength values lost in extraction

To check against: 59 (sources 49, 53, 56; 53 Thünen Institute)
The verdict: CONFIRMED (general); UNRESOLVED (strength values, as the draft itself notes)
Found: General bast-fibre/cordage sources (Wikipedia "Bast fibre"; permies.com nettle threads; Josefin Waltin nettle-processing blog)
Note: Late-summer/early-autumn harvest of nettle stems for bast fibre, retting to separate fibre from the woody core, and two-ply (plied) cordage construction are all standard and confirmed practice. The draft itself already flags that strength values were lost in extraction — consistent with what I found; no Thünen Institute source was located specifically.

E51 amended Story knife; Bench 5

Scaling under water, gilling, vent-to-throat cut, kidney scrape, fillet through or over the ribs; yields trout 55–60 %, salmon ~70, flatfish ~30; pin bones pulled post-rigor forward and up; rigor within an hour, out in a day cold

To check against: 60 (yield table source 6 vendor; techniques blogs 22, 44, 49, 59)
The verdict: AMENDED
Found: Fish-processing yield sources (reluctantgourmet.com/chefs-resources.com aggregating industry data); rigor-mortis timing: FAO "Quality and quality changes in fresh fish," fao.org/4/v7180e/v7180e06.htm; ResearchGate rigor-onset comparative data
Note: Yield figures roughly check out: trout ~55–60% fillet, salmon ~70%, flatfish closer to 30–35% — matches the draft closely (CONFIRMED for this part). However, rigor-mortis timing ("within an hour, out in a day cold") is an oversimplification: onset varies hugely by species and temperature — e.g. tilapia onset at 7 h (22°C) or within minutes under cold-shock at 0°C, carp onset at 16–17 h, resolution commonly a day or more and up to 2–3 days in cod. Proposed wording: "rigor sets in within a few hours (faster if the fish is chilled quickly) and passes within a day or two."

E52 unresolved Story knife; Bench 5

Fresh-water yields carp, pike, perch, zander 40–50 %, eel ~70 % gutted and skinned; pike Y-bone strip ~10 % of fillet; carp/bream/roach scored every 3 mm (Einschneiden); perch/zander nearly boneless; eel skinned by nail-and-pull

To check against: German fish-processing tables (e.g. Bundesforschungsanstalt für Fischerei Ausbeute); Fischküche handbooks
The verdict: UNRESOLVED
Found: Searched for German freshwater fish-processing tables (Bundesforschungsanstalt für Fischerei); not located within 3 searches
Note: General freshwater fish yield percentages (carp/pike/perch/zander 40–50%, eel ~70% skinned/gutted) are broadly consistent with the general fish-yield sources found for E51, but I could not locate the specific German institutional table (successor institution is now the Thünen-Institut für Ostseefischerei) to confirm the precise German figures or the pike Y-bone/scoring (Einschneiden) technique details. Recommend the writing session search Thünen-Institut publications directly.

E53 partly confirmed Story smoke

Smoke: drying, phenols (antiseptic and flavour), heat; keeping by salt, drying and cold

To check against: 71; Huss FAO 348; Torry Note 82
The verdict: CONFIRMED (mechanism); source docs not independently re-opened
Found: doc 71 (RESEARCH/71) discusses phenol deposition, drying and heat as the three preservation mechanisms of smoking
Note: Doc 71 confirms the three-part mechanism (drying/dehydration, antiseptic and flavour-active phenols such as guaiacol/syringol, and heat) as the basis of smoke preservation, consistent with the long-standing Torry Research Station / FAO Huss framework. Did not independently open Huss FAO Fisheries Technical Paper 348 or Torry Note 82 directly — relying on doc 71's accurate paraphrase of that tra...

E54 confirmed Story smoke; Bench 7; failures; Numbers

Brine conversion: 70–80 °SAL = 18.5–21.1 % = 1.88–2.23 lb/US gal = ~225–270 g per litre of water; matches Ch 11's 220–250 g/l; never above 90 °SAL; brine < 15.5 °C; times by thickness (5–15 min thin to 4 h large whole fat); weight fat fish under (rusting); rinse against salt bloom

To check against: 71 (meatsandsausages.com and Scribd table); Ch 11 row S-series
The verdict: CONFIRMED
Found: doc 71 (RESEARCH/71), brine conversion table
Note: Doc 71 itself gives 70–80 °Salometer = 18.5%–21.1% NaCl by weight, matching the draft exactly. The lb/US gal and g/l conversions in the draft are internally consistent with the °SAL–%NaCl relationship doc 71 tabulates (10 °SAL = 2.64%, so 70–80 °SAL tracks to roughly the stated 225–270 g/l). Consistency with Ch 11's 220–250 g/l is a cross-reference the writing session should double check but is...

E55 confirmed Story smoke; Bench 7; failures

Pellicle: dry 1–12 h (30–38 °C with airflow in 71; household breeze in shade) to tacky shine; wet fish gives soot, bitterness, boiled surface

To check against: 71 (recipe page source 30; hobby site 3)
The verdict: CONFIRMED
Found: doc 71 (RESEARCH/71), pellicle discussion
Note: Doc 71 describes the pellicle as a glossy, tacky, semi-permeable protein membrane that forms during air-drying after brining (70–80 °SAL) and before smoking, required to bind smoke phenols and (in hot smoking) to hold in moisture/fat. This matches the draft's description; drying-time range (1–12 h) and the failure mode of a wet, undried fish (soot, bitterness, boiled surface) are consistent wit...

E56 confirmed Story smoke; Bench 7; Numbers

Cold smoke ≤ 30–33 °C, no kill, safety by salt, freezing and cold; hot smoke Torry three steps 30 °C 30–60 min, 50 °C 30–45 min, 80 °C to core; core blank in source; household 65 °C at the bone 15 min or flake test; trout ~1.5 h, kilo carp 2–3 h; eel 80 °C 1.5 h then 90 °C 30 min, juniper

To check against: 71 (FAO Torry Advisory Note 82); Torry Note 82 itself (core 60 °C 30 min historically? check); Räucher handbooks for eel
The verdict: CONFIRMED
Found: doc 71 (RESEARCH/71), citing Torry Kiln three-stage protocol
Note: Doc 71 gives the Torry-derived hot-smoking stages as Stage 1: 30°C (desiccation), Stage 2: 50°C (coagulation/aromatic deposition), Stage 3: 80°C (thermal lethality/core) — matching the draft's "30°C, 50°C, 80°C to core" almost exactly. Cold-smoking ceiling of 32–33°C (never exceeding this to avoid any thermal lethality) is also directly confirmed in doc 71. Household benchmarks (65°C at the bon...

E57 confirmed Story smoke; Bench 7

Wood: alder (Baltic/Havel), beech, fruitwood; never pine, spruce, fir; barrel smoker layout; juniper twig at the end as Spreewald signature

To check against: Räucher handbooks; Spreewald Fischräucherei practice; 71 gives none
The verdict: CONFIRMED
Found: Traditional smoking-wood guidance (destination-bbq.com, lakesidesmokers.com, theonlinegrill.com — aggregating conventional smoking practice)
Note: Alder is confirmed as the classic wood for smoking fish (mild, sweet smoke, traditional for salmon/Baltic fish); beech is confirmed as a good alternative, especially where oak would be too strong; fruitwoods (apple, cherry, pear, plum) are confirmed as suitable for fish. Resinous conifers (pine, spruce, fir) are consistently excluded from fish/meat smoking guidance due to harsh, sooty, bitter s...

E58 amended Story smoke; Bench 8; failures

Salt fish: lean species only, split, dry salt ¼–⅓ of weight 7–10 days cold, air-dried 2–3 weeks in cold dry months to > 50 % weight loss, keeps a year in a dry loft, soaked 48 h; fat fish go rancid; 7.5 kg salt for ~25 kg fish; heads and frames to soup, bones to fire and field at 50 g/m², guts to hens or buried, never the pond; heron takes ~1 kg/day of small fish, strings at knee height or steep banks

To check against: Klipfish/stockfish practice (Norwegian klippfisk 20–25 % salt); Ch 11 row on 7.5 kg fish salt; Ch 9 bone-meal row B-series; heron predation literature
The verdict: AMENDED
Found: Grey heron intake: Springer/BOU sources on heron diet, e.g. bou.org.uk/grey-heron-diet.pdf; link.springer.com/article/10.1007/s10344-005-0096-x; klippfisk/stockfish: en.wikipedia.org/wiki/Dried_and_salted_cod
Note: Salt-fish practice (lean species, split, dry salting, weeks of air-drying to substantial weight loss, then soaking to rehydrate before use) matches the general klippfisk/stockfish tradition, though the specific "7–10 days cold, 2–3 weeks air-dried to >50% weight loss" figures were not independently checked against a specific Norwegian source (general sources describe the method but not these exact durations). Heron predation: sources give adult grey heron daily intake as roughly 330–500 g of fish, not the draft's "~1 kg/day" — this looks overstated by roughly 2×. Proposed amendment: "a heron takes roughly half a kilo of small fish a day" (330–500 g per BOU/European studies), unless a source supporting ~1 kg is found.