Article Summary There are two main types of decaffeination processing, indirect and direct solvent. Indirect solvent method uses Green Coffee Extract (GCE) which draws out caffeine through diffusion. GCE molecules then become saturated with caffeine while the green coffee is essentially free of caffeine. Filters remove the caffeine from the solution and...
Editor’s note: This article in its entirety is published in the January/February 2026 issue of Roast magazine. Below is the author’s expanded cut of the introductory paragraphs, plus a short summary of the research project. Chris and Isabella also recorded a podcast on our findings that you can view here on YouTube or listen to here. Author’s Expanded Introduction ...
