A side-by-side video guide to the color changes we see roasting decaf coffee versus non-decaf.
If you want to challenge your ability to roast coffee, try a batch of decaf. It’s quite likely the hardest coffee to roast for a whole host of reasons.
We get a lot of questions about how to best roast decaf coffee. I made this video to help represent the visual differences in a decaf roast and a non-decaf coffee side-by-side. This video doesn’t offer much in the way of roasting tips, but I feel it helps demonstrate what to look for when roasting decaf, and explains some of the “why” when it comes to roast differences.
My toaster-oven technique used to roast here is the best I know for demonstrating bean changes, because the coffee is stationary. I am not saying this is the best roast technique though. Without moving the coffee, it turns out uneven. (See my page dedicated to Convection Toaster Oven / Air Fryer coffee roasting for tips on how to get better results by this method).
The coffees you see here are from Sweet Maria’s current stock (at this writing): Indonesians are available as a unique wet-hulled or dry-hulled (washed) coffees. Giling Basah is the name for the wet-hulling process in Bahasa language, and will have more body... ...more Wet-processing starts by removing the outer skin of the coffee cherry with a machine called a pulper, then fermenting the remaining fruit (with green bean inside) in water... ...more Pantan Musara on the left and Sumatra The northernmost district in SumatraL Aceh District is north of North Sumatra and produces some very classic Sumatra coffees. The center of coffee in Aceh is Lake Tawar... ...more Farmers SWP means Swiss Water Process is a patented water filtration decaf method, not a chemical solvent method. The plant is in Vancouver, Canada. ...more Decaf on the right (SWP= Swiss Water Process). The toaster oven used is the Cosori Air Fryer toaster oven I use in other videos