The Sake Bomb is the coolest way to serve Saki to your friends, family or mate. The Sake Bomb is a ceramic product that keeps both your hot sake hot and your cold sake cold. To heat sake you may place Sake Bomb in microwave for a minute. Sake Bomb holds 8 FL OZ. and is hand crafted. it is available in a variety of vivid colors with a sealed glazed finish. To ensure the sake bomb remained true, the manufacturing process combines both high-tech modern technologies with traditional handcrafted techniques. The vessels were initially design from plaster molds, while traditional slip-casting procedures are employed to create the ceramic versions for kiln firing.