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IMO4 Overheating, Greenhouse Ventilation, Avian Flu

September 14, 2025 · by Drake Weinert

The episode opens with an I Ching reading on the hexagram of opposition, then Drake announces the Pure KNF Foundation's September members meeting at 2 p.m. Hawaiian time. He and Master Cho are working through the ninth of ten videos in the basic poultry training series, filmed in greenhouse sessions at Gukseung County.

A farmer building a new IMO4 pile reports it climbing past 120°F even after spreading it flat to cool. Drake's read: too much nitrogen, likely pulled in from an old goose run under the pile, since mycelium reach out roughly 10 feet through soil to draw material in. His fix is to add carbon — biochar, straw, or wood chips — to bring the C:N ratio back into balance.

Master Cho covers greenhouse design (open bottom vents, a top vent to let hot air escape, working like passive air conditioning) and ties poor ventilation to disease outbreaks like avian influenza in chicken houses. Drake recalls touring a commercial piggery in Korea in 2019 with Justin, where the stench required Tyvek suits, contrasted with the no-smell result of proper natural farming ventilation. Master Cho also says sesame plants release fatty acids into the air, so animals pick up omegas from the wind, not just from eating.

Drake also talks through kikipi mounds for keeping kalo out of standing water in heavy rain, since rainwater starts oxygen-rich but turns stagnant, and closes with a reminder that Pure KNF Foundation membership is $60 with no requirement beyond wanting to learn KNF.

Questions answered

  • 9:58 How do you keep taro (kalo) from drowning in heavy rain? — Drake said build kikipi mounds so the corms sit above standing water, since rain starts oxygen-rich but turns stagnant and can drown roots.
  • 10:41 My new IMO4 pile keeps climbing past 120°F even spread out flat, what's wrong? — Drake said it's likely too high in nitrogen; add carbon like biochar, straw, or wood chips to slow it down.
  • 12:40 Could the old goose run under my compost pile be adding nitrogen? — Drake said yes, mycelium reach out roughly 10 feet through soil and pull nutrients from nitrogen-rich ground into the pile.
  • 18:41 How does Master Cho's greenhouse design regulate temperature? — Open bottom vents let cool air in and a top vent lets hot air rise out, so the greenhouse works like passive air conditioning.
  • 23:28 What causes most disease outbreaks like avian flu in chicken houses? — Master Cho said it's dirty, nitrogen-fouled air from waste, not just the virus itself, so good ventilation is the fix.
  • 27:23 Why use IMO instead of fighting disease with antibodies or antibiotics? — Master Cho said the IMO's beneficial microbes outcompete the harmful germs directly, rather than relying on the body to fight them off.
  • 33:11 Can crops pick up nutrients like omega fatty acids from the air? — Master Cho said sesame plants release fatty acids into the wind, so animals and people take in omegas just by breathing near them.
  • 55:57 What does it cost to join the Pure KNF Foundation and what's required? — Membership is $60 and the only requirement is a desire to learn Korean natural farming.

Topics: knf, imo, imo4, compost, nitrogen, biochar, kikipi, taro, greenhouse, ventilation, avian influenza, ohn

KNF Office Hours is a free live Q&A every Sunday at 9 AM HST. Bring your question to pureknf.org/learn/questions or join live.

In this episode

  1. 0:00 I Ching reading: opposition
  2. 1:30 Intro with Master Cho, integrated animal farming
  3. 2:17 Livestock in KNF: eggs, pork, cows
  4. 6:08 PKF September members meeting
  5. 7:42 Chat feature down, GrowBot committee
  6. 8:30 Members roll call
  7. 9:58 Kikipi mounds for taro in heavy rain
  8. 10:41 IMO4 pile overheating past 120°F
  9. 16:48 Master Cho basic poultry training video
  10. 18:41 Passive-cooling greenhouse design
  11. 22:43 Avian influenza and air quality
  12. 23:28 Commercial piggery story from Korea
  13. 27:23 IMO vs antibiotics for disease
  14. 33:11 Omega fatty acids carried in air
  15. 45:07 OHN and sobriety
  16. 48:07 OHN and licorice inventory
  17. 50:18 Sauna and IMO4 box demo
  18. 54:41 KNF Love Manifesto
  19. 55:57 PKF membership cost and requirements

Transcript

Auto-transcribed with Whisper. Click any timestamp to play from there.

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