Mountain Water Process is a method of indirect decaffeination. All our MWP decafs come from Descamex, which uses pure water from Pico de Orizaba—the highest mountain in Mexico. The process begins with a chemical analysis to determine optimal conditions, and then the beans are steamed and prepared for extraction. The extraction process uses a water-based saturated solution that removes the caffeine while keeping the coffee's flavor compounds in place.
Fun fact: Roasters don't hear the "crack" when roasting decaf, because the crack represents moisture reaching a boiling point inside the bean and pushing through; with decaf, this isn't the case, because the cellular structure of the bean has been changed.
More details about the Turquesa in our Mexico Turquesa MWP Decaf can be found here.