Use water that has boiled just once - any more than that and the oxygen level in the water is reduced, which can cause your tea to taste a bit 'flat'. In a mug: Pour the freshly boiled water directly onto your tea bag in the mug. This way the tea infuses better than when you add the tea bag to the water. Leave to 'brew' for 2-3 minutes, according to your taste. Remove the bag with a spoon giving it just one squeeze. Add sugar/sweetener and milk, if desired.