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A Field Guide to Biochar Water Treatment · Jan 18, 2026

Solar Biochar Oven Version 2.0

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JK · A Field Guide to Biochar Water Treatment

FYI I have appended the Solar Biochar Oven how-to manual with information on the latest iteration, Design Variation 2.0.

Variation 2.0 was developed after several months of heavy use of the previous version (Version 1.4). It represents advancements in performance and reliability compared with previous designs, and is simpler to construct.

More updates coming soon, including some photos and reporting on a new Groundwater Treatment System that just came online serving the community of San Elias in Guanajuato state, Mexico, courtesy of Caminos de Agua.

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