We use two processes for decaffeination. Our Decaf House Blend, Decaf French Roast, Decaf Sumatra, and Decaf Major Dickason’s Blend are processed via the direct contact method. Our Decaf Mocca‐Java is decaffeinated via the water process method.
The direct contact method uses a decaffeinating solvent. The beans are steamed, then repeatedly rinsed with the solvent to draw out the caffeine. The coffee is then steamed for an additional ten hours to evaporate the solvent. The beans are then washed, dried, and ready for roasting.
The water process uses (you guessed it!) hot mountain spring water to remove the caffeine. The caffeine is then filtered from the water, and the beans are repeatedly soaked in the caffeine-free water to restore flavor. The beans undergo this process repeatedly for about eight hours, are dried, and ready for roasting.
There are several companies that specialize in water process decaffeination. If you see the term ‘Swiss Water’, it refers to a specific company, the Swiss Water Decaffeinated Coffee Company, which decaffeinates coffee using the water process method.
For more information about decaffeination processes, please visit https://en.wikipedia.org/wiki/Decaffeination
You can explore our full range of decaf coffees at https://www.peets.com/coffee/decaf-half-caf