Only tea s from the best tea gardens are used for this strong blend . Preparation of Ostfriesentee Lekker Köppke1 tea spoon of tea per cupThe optimum water temperature is 95°C10g to 15g of tea per 1l of water2-3 minutes of infusion for a stimulating effectUp to 5 minutes of infusion for a calming effectAvoid longer infusion times at all costs.