Everything we know about natural farming, in one place.
Master Cho’s own books. The University of Hawaiʻi papers that farmers helped write. 234 recordings of meetings and Office Hours. Search it all, or follow one of the paths below if you don’t know where to begin.
Looking for something someone said? Search inside every Office Hours episode →
🔓 Free to everyone
All the University of Hawaiʻi papers, the Hilo meeting recordings, every Office Hours episode with searchable transcripts, and the history.
📚 For members
Borrow Master Cho’s books and read them in your browser, plus members’ meetings and short documentaries. Membership is pay-what-you-can, from $60 a year.
💬 Stuck? Ask
Can’t find it, or found it and still have questions? Ask the community or bring it to Office Hours.
Where to start
Pick the path that fits you. Each one is three stops, in order.
New to KNF? Start here
Three stops that take you from “what is this?” to your first jar.
- PageStart Here: the nine solutions Plain-language tour of the nine homemade inputs, with a recipe for each.
- VideosThe Hilo nine-solution series One solution a month, taught live in Hilo. Watch them in order.
- PaperBIO-9 · How to Cultivate Indigenous Microorganisms The first University of Hawaiʻi guide to catching indigenous microorganisms. Free PDF.
Master Cho in his own words
The founder’s own English books, and the story of where he learned it all.
- BookCho Han Kyu's Natural Farming (Janong Book)Members One of Master Cho’s best English publications. Members can borrow it.
- BookCho's Natural Farming Recipes and Instructions for UseMembers The recipe book: how to make each input, step by step. Members can borrow it.
- PageHistory & Lineage His three teachers, sixty years of work, and how it came to Hawaiʻi.
The science
What farmers wrote down, and what the University of Hawaiʻi found when it looked closer.
- PaperSA-7 · Natural Farming: Fermented Plant Juice Fermented Plant Juice, written by Hawaiʻi farmers with UH extension. The first of six.
- PaperSA-12 · Natural Farming: Fish Amino Acids Fish Amino Acids. First author: Drake Weinert, before Pure KNF began.
- PaperSA-22 · Natural Farming: Bacteria in 10 Sources of Indigenous Micro-Organisms (IMO4) from Natural Farming Operators in Hawaiʿi Which bacteria live in IMO-4 from ten Hawaiʻi farms.
The collection
Three rooms. Here’s what’s in each.
Books
3 titlesMaster Cho’s own English books — the theory and the recipes. Members borrow a copy and read it online, like a real library.
Browse books →Papers
13 papers · all freeUniversity of Hawaiʻi publications on natural farming, from the 2013–14 farmer-written recipes to lab studies of the microbes.
Browse papers →Videos
234 recordings224 Office Hours episodes, the Hilo monthly meetings, members’ meetings and documentaries.
Browse videos →Just added
All videos →
Can’t find what you need?
Most of what Master Cho taught lives in the recordings, not the book titles. Search the transcripts, or just ask — someone has probably wondered the same thing.