IMO 3 bran replacement
From the KNF library
Yes. Drake says spent brewery grain can go into an IMO 3 pile in place of bran. (Office Hours Ep. 70, 51:59) (Office Hours Ep. 29, 39:42) (Office Hours Ep. 113, 36:54)
Brewing strips out the sugars, so the grain needs help. Drake says to blend in extra carbohydrate, such as mashed or powdered potato. (Office Hours Ep. 70, 51:59) (Office Hours Ep. 29, 39:42) Instant potato also works. (Office Hours Ep. 113, 36:54)
A published KNF study lists spent grains from breweries among the materials that can replace wheat mill run. (Unravelling the Mysteries of KNF, p. 60) The same study says nobody has compared how well each carbohydrate source works. (Unravelling the Mysteries of KNF, p. 60)
Drake's ideal carbohydrate for IMO 3 and 4 is mill run, the bran left from milling white rice. (Office Hours Ep. 31, 31:49) Treat spent grain as a substitute and amend it.
Sources
- 51:59 Office Hours Ep. 70 (Apr 2023) — Piglet Birth, Mastitis Antibiotics, and Chick Feed Regimen · “amend it with carbohydrates like mashed potato, since brewing strips out the sugars”
- 39:42 Office Hours Ep. 29 (May 2022) — Red Dirt for IMO4, Storing IMO3/IMO4, Spotting Bad KNF Ferments · “blend in extra carbohydrate like powdered potato since the yeast already consumed the sugars”
- 36:54 Office Hours Ep. 113 (Feb 2024) — Substituting Grains in IMO, JADAM Pest Kit, Seed IMO Timing · “brewing strips out the carbohydrates, so re-amend with something starchy like instant potato”
- 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. 60 Unravelling the Mysteries of KNF · “spent grains from brewery’s, wood chips, rice bran, ulu (greadfruit), or kalo (taro) skins may be used in place of wheat mill run”
