ZOJIRUSHI12oz Stainless Steel Tumbler, Smoke Blue

This review is for all those in the UK trying to find a portable coffee mug that keeps the coffee hot on the commute and won’t leak. Look no further you have found it - the coffee was hotter than it went in - not actually but it keeps it that hot! And no leaking chucked it in my bag and was good to go. Worth every penny.

The Zojirushi range of thermos flasks/flask mugs are first rate. They keep things hotter or cooler for longer than any other product that I have tried. Very easy to use and keep clean (buy a baby's bottle brush - the one that looks like a pipe cleaner - to clean the spout) and made of sturdy materials. It would be even better if you could buy the spare seals over here as I tend to replace the flask mug every 3 to 4 years but as it gets used at least 5 days a week for that time it works out at less than 4p per use so is very good value. So don't be put off by the relatively high purchase price; quality lasts and pays for itself. It's one of those products you really appreciate and wouldn't do without!

Comes apart for the dishwasher. Easy to open one handed. Keeps hot things hot for a work day. I highly recommend this one.

The only fault is that you have be really careful taking the first sip if you haven’t let it cool before putting it in the flask - put it in boiling and it’ll still be close to that a couple hours on. Fantastic mug that never leaks and genuinely keeps the drink warm

This is my second zojirushi bottle as they are just so good! A little expensive but we'll worth the extra money as they perform so well. My coffee is stoll hot the next day if I've forgotten to empty it! Great!

Brilliant, exactly wat I wanted

With all flasks I always put boiling water in first to warm it up. Empty this away before putting in coffee with water that is only boiled to 90 degrees and take the chill of milk. This can still burn your mouth 4 hours later if your not careful. For me the coffee is still warm later in the day. Finding it much better than going to a cold cup of coffee half an hour later.

Not the first one I bought, heat retention is amazing and it just feels like a quality product.