Kolba

A convenient tea flask with two independent sections: the upper compartment for brewing, the lower one for the finished infusion. Allows you to brew tea using the gongfu method anywhere—simply, cleanly, and without compromise.
Features:
Gongfu brewing—control over time and flavor intensity.
Two compartments—tea is brewed by pouring, by flipping the flask, and drains into the lower compartment, where it's ready to drink.
Versatile—suitable for shu, sheng, oolongs, red teas, and even floral teas.
Outdoor format—take it with you and brew—in nature, in the car, at the office.