Open source
Certification opportunities.
The Global Artisan C-Sink standard is open. The claims framework is open. The way we think about economics is open. The platform only works if the data is inspectable. Biochar is the entry point. The benefit lands at every step: growers, mills, exporters, roasters.
Certification process. Certification and carbon market access can unlock biochar’s potential. Here, we share the methodology so you can understand it.
Each subsection cites the underlying standard (Global Artisan C-Sink, current version).
CSI certification structure
The Global Artisan Carbon-Sink standard is built around five parties that have to be in their right roles for any credit to be issued: Endorsing Agent, Certifier, C-Sink Manager, Producers, Registry, and the three producer categories (C-Sink Farmer, Artisan Pro, C-Sink Cook). Knowing who does what is the fastest way to understand whether a biochar project is real or marketing.
MRV workflow
Monitoring, Reporting, Verification enables a pile of biochar to become a registered credit. Digital MRV apps can capture everything from feedstock moisture to soil GPS, but the discipline matters more than the tool.
Persistence and methane
A biochar credit is two things stitched together: a long-term carbon sink and a compensation for the short-term methane released during pyrolysis.
Claims framework
Three regulatory regimes set the outer bounds of what a coffee brand can say about biochar and require that any environmental claim be substantiated, quantified if quantified-sounding, and supported by the kind of evidence a reasonable third party would accept.
Project economics
The economics depend on three things: scale, country, and what you do with the biochar. Conceptual ranges, not a single project quote.