The Swiss water processed decaf coffees contain absolutely no chemicals. The decaffeination takes place in Vancouver, British Colombia. The beans are shipped to us in their green, unroasted state, and we do the rest. These beans are 98% caffeine-free. That translates into about 15 milligrams of caffeine per cup of coffee. Of course, a lot depends upon a number of factors, such as the fineness of the grind, how much coffee you use per cup, and how you brew the coffee. Not all decaffeination processes are chemical-free. And some are allowed to be labeled “naturally decaffeinated” because the chemical solvent used to decaffeinate the beans is a naturally occurring substance, not synthesized artificially by chemistry. Only two processes are absolutely chemical-free. One is the water process decaf and the other is the C02 process. I like the water process decaf better for its taste.