If you are particularly sensitive to caffeine,this is a tasty alternative Preparation of Ceylon Tea FOP 'Sumtraville'1 teaspoon of tea per cupThe optimum water temperature is 95°C10g to 15g of tea per 1l of waterPrepare for 2 to 3 minutes for a stimulating effectPrepare for up to 5 minutes for a calming effectAvoid longer brewing times at all costs.