TEA DECAFFEINATION PROCESS

摘要

1. Process for the decaffeination of tea by extracting tea containing 15 to 50 wt.% of water with moist CO2 at 255 to 350 bar and 50 to 80 degrees C., subsequent separation of the caffeine from the CO2 with the help of an adsorbent and recycling the caffeine-free CO2 over the already extracted tea, wherein one distributes the adsorbent, especially activated carbon, in the material to be extracted in an amount of 5 to 40 wt.%, referred to the dry weight of the tea.