which temperature need for using JMS, brown Sugar or maybe salt
Top answer
From the KNF library
Drake judges cool-weather JMS by smell. Sweet or sourdough means it is good. Rotten egg or vomit means it has gone anaerobic. (Office Hours Ep. 28, 47:13)
The library's JMS recipe already uses salt and no brown sugar. It calls for water, rich microbial soil, starch, and sea salt. (Office Hours Ep. 90, 38:00)
For KNF ferments that do use sugar, the library says why sugar is used instead of salt. Yeast is salt-sensitive. Up to about 10 percent salt can be added, but no more. (Office Hours Ep. 27, 57:00)
The library gives a temperature only for a different ferment, IMO #2. Cho keeps it at 23-25°C, and says spring and fall batches take more time. (Cho, Recipe, p. 13)
The library does not give a minimum temperature for JMS. It also says nothing about soil temperature, the 2-4 week wait, or planting dates in frozen ground.
Sources
- 38:00 Office Hours Ep. 90 (Aug 2023) — Certificate to Teach KNF, JMS Smell Test, FPJ vs FPE · “Mix water, rich microbial soil, starch, and sea salt in a bucket and let the good microbes out-compete the bad.”
- 57:00 Office Hours Ep. 27 (Apr 2022) — knfFuel Mold, Jadam Pasture Recovery, OHN & Alcohol · “Sugar suits the yeasts and lactobacillus KNF relies on since yeast is salt-sensitive; up to about 10 percent salt can be added, but no more.”
- 47:13 Office Hours Ep. 28 (Apr 2022) — Beef Aminos, Coral Calcium, and IMO Troubleshooting · “sweet or sourdough smell means it's good, rotten egg or vomit smell means it's gone anaerobic”
- p. 13 Cho, Recipe · “Keep the temperature at 23-25°C for optimum fermentation of the IMO.”