Skip to main content

← All questions

Asked by daniildanzig ·September 25, 2020 ·19.7k readers

Hemp or other alternatives for IMO 3

Hello! In the level 2 course on YT, Drake tried using hemp in the 2nd video as a substrate for IMO3. Unfortunately, I have not been able to find the next video in the series, so do not know if that experiment worked out or not. Hemp is a really cheap resource here, and it would be awesome if we could use it in this process. Also, for non-tropical growers, what have been some successful alternatives to wheat mill run for you? Thanks! D    

imo3 hemp alternative

The answer

From the KNF library

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

Cho's Solutions gives the IMO3 substrate by volume: 1 part wheat mill run to 1 part wood chips, with optional 5% biochar, moistened to 60% moisture content. (Cho's Solutions, p. 18) That answers the follow-up on volume versus weight.

The Hawaii study used 22.68 kg of wheat mill run "or a carbohydrate source." (Unravelling the Mysteries of KNF, p. 58) It puts moisture at 65-75%, which differs from the 60% in Cho's Solutions. (Unravelling the Mysteries of KNF, p. 58) (Cho's Solutions, p. 18)

The same study says the process varies from farm to farm with local materials, but the principle stays the same. (Unravelling the Mysteries of KNF, p. 56)

The library does not say whether the hemp trial worked. It does not cover hemp as an IMO3 substrate or cold-climate swaps for wheat mill run. Drake can speak to his own hemp results on a call.

Sources

  • p. 56 Unravelling the Mysteries of KNF · “the process of collecting and culturing microorganisms may vary farm to farm due to locality and availability of materials and supplies. However, the principle remains the same.”
  • p. 58 Unravelling the Mysteries of KNF · “22.68 kg of wheat mill run (or a carbohydrate source), 20 L of fish pond water”
  • p. 18 Cho's Solutions · “1 part wheat mill run 1 part wood chips optional 5% biochar Moisten to 60% moisture content”
2 more answers
lvanderb · Oct 9, 2020 ✓ Marked as the answer
I was watching a YouTube video made more recently, now that Chris Trump is in Idaho? At any rate, he stated that his latest favorite for IMO3 is crimped oats. Not free for me in Southwestern Ontario Canada, but doable and that's better than wheat bran (quite cheap here, relatively speaking). Crimped oats is naturally carb plus carbon, I'm pretty sure, and if it gets too hot (I'm not allowed to make IMO until spring, lol...hubby thinks it's just pointless now that we're headed into winter), I can cover with wood chips. I still have to make OHN. I'm thinking maybe it's a good idea to start this all in the fall, so I have time to make some of the longer process inputs.  
daniildanzig · Sep 30, 2020
Thanks for your response! Is that ratio by weight or volume?   TIA

Also discussed on Office Hours

Know the answer? Members answer, ask, and get their questions onto the Sunday show.

Sign in Become a member