TWINBIRD（ツインバード） TWINBIRD Japanese Electric Sake Warmer Portable Atsukan Machine Black TW-D418B

これを買うまで電子レンジを使ったり、湯を沸かしてつけたりしていましたが、買ってからはとても便利になりました。これまでは最初熱くても冷めていくのが嫌でしたが、最後まで温かいまま飲めるのが最高です。日本酒を飲む知人には勧めています。

Wonderful warmer. The container is washable and separate from the heating base, making cleaning a breeze. The temperatures work as expected but be advised they are in Japanese. As are the instructions. As one reviewer points out, the 110/120 plug in the US makes a difference. Around 8-12 degrees C of a difference. Not a big difference for average consumers, but at the highest temperature settings, you can absolutely burn the alcohol off. I've edited the provided temperature image for clarity US owners can expect from each setting. I'd advice staying within the lower/lower-mid range if you just want to enjoy what most restaurants here pass as hot sake. Then, adjust as you'd like.

Excellent product for Sake! Doesn't look that good but really good for you warm wine

冬のお供として楽しんでいます。 とても良い品ですが、加熱する時は一度下限まで操作バーを下げてから加熱しないと作動しません

If you like hot sake, this silly little appliance is wonderful. No more long waits to heat on the stove, or overheating in the microwave. It's full adjustable from "human skin" temperature to quite hot, and maintains the temperature of your sake as you sip. It doesn't hold a lot of sake, about 300 mL, or about half of a big bottle. Be aware that the manual is fully in Japanese, but some of the other reviewers have kindly translated the important parts. There is a slight voltage difference from Japan to the US, but that just means that it gets a few degrees hotter than the original settings - there is no danger to plugging it in. My only small complaint might be that when you wrap the cord on the bottom, there's no place to put the plug. But that's true with most appliances these days, so it's a small quibble. I am delighted with this purchase!