Unsweetened, dry cocoa powder can contain up to approximately 200 mg of caffeine per cup.
Notes on verification
USDA FoodData Central data supports ~198 mg caffeine per cup (86g) of unsweetened cocoa powder, corroborated by multiple independent secondary sources, though all trace back to the same USDA measurement.
Sources
- Cocoa - Uses, Side Effects, and More - WebMD (webmd.com)
- https://howmuchblog.com/how-much-caffeine-is-in-cocoa-powder/ (howmuchblog.com)
- https://www.zoeharcombe.com/nutrition-data/cocoa-powder-nutrition-data/ (zoeharcombe.com)
- https://baristalife.co/blogs/blog/how-much-caffeine-in-cocoa-powder (baristalife.co)