Show Notes
Trevor is one of the founding members of Biochar Network New Zealand (BNNZ) and the secretary since its inception in 2019. He joined me for a chat and talked about his journey with biochar and many insights into its prevalence in SouthEast Asia and New Zealand. Another flame cap method using Warm Heart kilns, that I hadn't heard of before, was described in detail and the Warm Heart organisation is doing superb work in promoting biochar in Thailand and in some countries in Africa. Their resource bank is superb. They have provided a way for small holders to earn carbon credits as well through their http://biochar.life/ program which offers a way for individuals or businesses anywhere in the world to offset their carbon emissions by supporting these people on the land to make biochar from ag wastes instead of open burning it. Trevor also talked about the history of research into biochar in New Zealand and how the The New Zealand Biochar Research Centre came about - it lasted around 10 years. He reflected on 'kicking the tyres' of the pyrolysis machine built at Massey Uni: Here is the thesis about the machine above: https://mro.massey.ac.nz/bitstream/handle/10179/5864/02_whole.pdf and more biochar related dissertations from Massey: https://mro.massey.ac.nz/browse/subject?value=Biochar&bbm.return=1 - there is not much left online about the The New Zealand Biochar Research Centre. Auckland and Lincoln universities also do biochar research, but it is difficult to find info on their websites. Trevor outlines many areas of society where biochar could complement - a long list - and where BNNZ could engage if it had more resources (both people and funds).
I enjoyed Trevor's obvious passion, dedication, and simple tips such as matching the char method to the biomass resource at hand...
More from Char Chit Chat
Toula from Southland Carbon joined me for a chat this week about her journey of biochar discovery to being the largest commercial producer in NZ.
Episode 14 was a fun chat with Kevin Rapson from Buzi-B Flower Farm. We chat about how he has used biochar to improve his and his wife Trish's soil for growing flowers commercially on their small holding on the Kaipara Coast, North West of Auckland.
Episode 13 of the Char Chit Chat with Amanda from Tinwald Farm covered a lot of cool stuff. I feel like more women are needed in the world to run farms so that they become way more connected with the living systems that they are part of.
Episode 12 features well known regenerative farmer Greg Hart from Mangarara Farm in the Hawkes Bay region. Dylan has known about Greg and his tree planting for many years and met Greg at the Underground Festival in 2025 after he attended his biochar workshop. It's great that Greg is now seeing the benefits of biochar to his farming systems and he is an excellent advocate for its widespread adoption. Greg talks about his farming journey and his move towards exploring better ways of raising animals without the abundant use of fossil fuels once he realised it's completely unsustainable around 20 years ago. Trees on farm are a massive part of this as are other ways of cycling nutrients such as on farm slaughter and charring of bones. Greg also is interested in intentional communities and is setting up an agrihood to address the "more people needed on the land" issue in a proactive and practical way.
Shakēd is involved in a large variety of endeavours and we talk about these for awhile before biochar comes up, but hopefully you will still find it all interesting!