- We thoroughly scrutinize our decaffeinated teas to ensure that they stand up to North American Quality specifications. All of our decafs are processed using the Co2 Process. The advantage of this decaffeination process is that no chemical solvents can be used to remove the caffeine. Also, using the naturally occurring Co2 in a circulation process which carefully uses high pressure and temperature to extract the caffeine, the origin distinct character of the tea is retained in the cup. There is a