Press to brew your tea and coffee. Lower the plunger to enjoy rich aromatic coffee or tea in just a few minutes! CAFEPRESS mug brews and strains all in one place. Just put in the coffee grounds or tea leaves, add boiling water, and let it brew. After a few minutes, slowly press down the plunger and enjoy! The double layered mug keeps your beverage warmer longer while protecting your hand from the heat.