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Asked by mahadiyu ·March 3, 2022 ·15.1k readers

LAB

I just came across a video on YouTube where the presenter conducted an experiment and determined that KNF LAB is more richer in a closed ferment system than the open traditional system.I would like the more experience hands to comment. here is the link  https://www.youtube.com/watch?v=oX-Ac1KwdvU I wish Dr.Drake could address this

lab

Top answer

From the KNF library

From the KNF library Drafted by Claude from Office Hours and the books · Sep 2026 · 3 sources

Master Cho's method does not seal the ferment from air. It relies on facultative anaerobes, which grow through the whole solution. (Office Hours Ep. 49, 47:33)

The Foundation's recipe starts open. Leave the rice wash bowl in the open air for 24 hours and do not cover it. (Student's Manual, Basic Course, p. 17) The jars of whey and sugar get a paper towel and rubber band, so LAB can breathe. (Student's Manual, Basic Course, p. 17)

Cho's recipe book says LAB are conditionally anaerobic, so they can also survive with oxygen. (Cho, Recipe, p. 53)

Together, these point to a ferment that gets some air, not a sealed one. (Office Hours Ep. 49, 47:33) (Student's Manual, Basic Course, p. 17)

The library does not cover the video, its method, or how it measured "richer."

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