Rice hulls for IMO3
From the KNF library
From the KNF library
Drafted by Claude from Office Hours and the books
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Sep 2026
·
3 sources
Drake's answer in the library is to use rice bran for IMO3, not rice hulls. Substrate changes how the microbes grow. Korean IMO practice always leans on rice bran for that reason. (Office Hours Ep. 158, 57:08)
Mill run is the bran left from milling white rice. It gives the right balance of fats, oils, and carbs. (Office Hours Ep. 31, 31:49)
Cho's IMO3 recipe, by volume, is one part wheat mill run and one part wood chips, with optional 5% biochar. (Cho's Solutions, p. 18)
The two sources name different mill runs: wheat in one, white rice in the other. (Office Hours Ep. 31, 31:49) (Cho's Solutions, p. 18)
The library does not say whether hulls can be added to the mix. That is a question for the show.
Sources
- 57:08 Office Hours Ep. 158 (Jan 2025) — Seed IMO Collection, Dry-Area Microbes, IMO Turning Machine · “Substrate changes how the microbes grow, and Korean IMO practice always leans on rice bran for that reason.”
- 31:49 Office Hours Ep. 31 (May 2022) — Cucumber Beetle Armor, No-Smell Chicken Coop, Biochar for Dry Soil · “Mill run, the bran left from milling white rice, gives the right balance of fats, oils, and carbs”
- p. 18 Cho's Solutions · “IMO3 Substrate by volume 1 part wheat mill run 1 part wood chips optional 5% biochar”
