FAA creating pressure in jars
Top answer
From the KNF library
The library does not say how to stop the activity. It does say what to expect.
Cho's recipe says at least 6 months are needed to get well-fermented FAA (Cho, Recipe, p. 50). Another source says FAA will continue to digest for 3 years (Cho's Solutions, p. 13). Gas from a batch this young is no surprise. Drake's answer to a similar question says opening a sealed FAA bucket lets the gases out (Office Hours Ep. 35, 30:59).
Added LAB looks unneeded. FAA ferments raw fish with sugar and LAB (Office Hours Ep. 11, 7:13), and FAA itself carries LAB (Office Hours Ep. 23, 11:15).
On sugar, the library gives a ratio: between 30% and equal parts by weight of brown sugar (KNF Demystified, p. 39). It also says to add more sugar if the batch smells (Cho's Solutions, p. 13). It never says sugar stops fermentation or prevents alcohol.
The sources split on sealing. One says to seal the bucket and leave it (Office Hours Ep. 35, 30:59). Cho says to cover the container, not seal it, so air can flow through (Cho, Recipe, p. 51).
The library says nothing about sealed 1L jars for storage.
Sources
- 7:13 Office Hours Ep. 11 (Nov 2021) — Fish Amino Acid vs Hydrolysate, IMO Heat, Seed Soak Storage · “FAA ferments raw fish with sugar and lactic acid bacteria without heat”
- 11:15 Office Hours Ep. 23 (Mar 2022) — IMO4 Pig Feed, LAB Without Milk, Disgustingly Cheap Microbes · “rice wash water, sauerkraut, kimchi, or fish amino acid also carry LAB”
- 30:59 Office Hours Ep. 35 (Jun 2022) — Gray IMO, Protector Overuse, Chicken Feed Ratios · “seal the bucket and don't open it again for two weeks to six months, opening it lets the gases out”
- p. 50 Cho, Recipe · “At least 6 months are needed to get well-fermented FAA”
- p. 51 Cho, Recipe · “When covering, not sealing, the container with a lid”
- p. 39 KNF Demystified · “Combine between 30% ~ equal parts by weight of brown sugar”
- p. 13 Cho's Solutions · “Will continue to digest for 3 years”
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