We use high grown Ceylon tea as the base for decaff tea for several reasons: High grown Ceylon gives us the character we are looking for - a flavoury and satisfying tea. The high grown estates are visited by us on a yearly basis to confirm that they undertake proper manufacturing techniques, keep plucking standards high, and reinvest in the estate and its personnel. Most importantly, high grown Ceylons retain their character under Co2 decaffeination processes much better than other teas we have tested.Typically quality of the tea is judged by hundreds of the tea tasters around the world. On a weekly basis raucous lively auctions are held in various producing countries where world prices are set. Tasters are looking for similar characteristics, so in the matter of a few seconds the value of the tea is established according to supply and demand functions and quality gradients.