Peter Hirst



Compost University Faculty

Peter Hirst

Symsoil

Palo Alto, CA | phirst@symsoil.com

Peter Hirst is a founder and principal of Symsoil Inc, where he develops biochar co-composting products and methods. Peter has specialized in biochar for over 10 years, developing production technology and writing and presenting extensively. An experienced educator, he has conducted courses and workshops in Conservation Burns, farm-scale production technology, integrated organic systems and incorporation of biochar in permaculture design. He most recently presented on co-composting at scale at the USBI National Conference on Biochar and Bioenergy at Colorado State University. He is a principal author of The Biochar Revolution, and is working on his second book, on agricultural biochar applications.