Biochar Price Sheet Biochar Price Sheet Biochar Price Sheet for Hawaii 2.5 acre biochar field trial in Manteca, CA Posted by Josiah Hunt on March 29, 2015 in Biochar Products Biochar price sheet. Latest pricing for our biochar products manufactured on the West Coast. Share this article: 4 About Josiah Hunt Naturalist by nature Related Articles You won’t believe how old this char really is! Fungi Feeding on Biochar Rock Dust and Biochar to Remineralize Soils. Compost Biochar Blends Available in Bulk, Maybe Near You.