Have you ever been curious about how coffee is decaffeinated? Don't fret, my friend! Today, we explain how some coffee beans get stripped of their caffeine using the world's most abundant resource, water. A natural process that allows you to have your late night coffee and your sleep, too.
Caffeine is water soluble. This is exactly why water goes into the coffee grounds clear and comes up all brown, delicious, and buzzing. See, the soluble material breaks down and dissolves into the coffee at a wonderful rate; the extraction rate of the caffeine is determined by the size of the coffee grounds and the temperature of the water.
As we stated, caffeine can be removed by water, which is the more natural process vs. using chemicals. In this method of removal, the green coffee beans are submerged in heated filtered water. The cleanliness of the filtered water and the heat facilitates the caffeine removal. The water is cycled through carbon, which will separates caffeine from the beans. The beans are then placed in a caffeine-free solution, which allows the beans to reabsorb all the goodness of coffee, minus the caffeine.
Many standards require 99.9% of the caffeine to be removed for the coffee to be labeled as decaf coffee. Other standards allow 97% of the caffeine to be removed. Even at three percent, the remaining caffeine is pretty negligible.
Many brands of decaf K-Cup coffee taste just as good as caffeinated coffee. Coffeevines.com has some delicious tasting water processed decaf coffee available.