Keep the desired temperature and enjoy the presentation of hot or cold Japanese sake. The secret to enjoying delicious sake is temperature. A double walled vacuum sake bottle that can keep both cold and hot sake for a long time. The surface doesn't get hot even when filled with hot sake, making it a great choice for home drinking. Its capacity is about 1.5 go (approx. 1.5 cups) . The matching cups, with their mirror-finished interiors, bring out the color and turbidity of the sake, creating an even more delicious experience. The two cups come as a set, making them perfect for an evening drink for two or as a gift. *When adding hot sake, warm it in a separate container before adding it. (This product is made of stainless steel and cannot be heated in a hot water bath or microwave.)