Esbit ISO Vacuum Flask 1 l

R... Review confirmed by purchase

100%

19.12.2025

This is already my third thermos of this model and capacity, and I chose different colors each time – this time I went for INOX. I recommend this version because painted thermoses are easily scratched, which makes them look worse, although it does not affect their insulation properties.

You can really feel the German quality. Filled before leaving for the mountains at 8 am, it was still hot the next day in the afternoon – the tea wasn’t lukewarm, but really hot. I tested it at 8–10°C. Remember to pre-heat the thermos with boiling water. Two stoppers in the set – I prefer the one without a button. The second cup is handy when there’s someone else – my daughter drinks from one, I drink from the other. I highly recommend this thermos!

The thermos keeps heat very well. It comes with two cups and two different stoppers. Made from good quality materials and the exterior doesn't scratch easily. I use it on construction sites and don't spare it – I recommend it!

Great quality workmanship and materials used. The set includes two cups that lock in place and do not fall out when the thermos is opened, and two different caps for pouring the drink. The thermos is a bit wider and shorter than cheaper models, but because of that it really keeps the temperature for a long time – definitely worth the price. That's especially important in the winter, when a hot drink helps you stay warm and healthy. A very successful purchase.

This is already my second thermos from this company and of the same capacity. It's reliable and keeps heat for a long time. Nothing happens to it, and both stoppers work flawlessly. The previous thermos has been working without issue for 3 years. I recommend it.

Esbit is a guarantee of quality. It keeps the temperature perfectly, and the two cups are a great solution – finally I don’t have to wait for my wife to finish her tea. I highly recommend it!

Does not leak, keeps the temperature very long, is comfortable and lightweight. A plus are the two cups, although one of them may fall out when opening. Two stoppers are also an added benefit. I recommend both the product and the store.

A very good thermos, not the first I've bought from this company – it's suitable for both drinks and main courses. I always buy Esbit or Rockland because they are sturdy and well-made. I recommend it.

I read good reviews about this thermos but didn’t expect such quality. It maintains heat excellently and looks very good. I definitely recommend it!

I haven’t had a chance to use the thermos yet, but upon unpacking I noticed it looks very well-made. I’ll see how it performs in practice. As always, the store is flawless. Recommend!

The thermos performed very well during several years of daily use. The fantastic insulation keeps the beverage hot even for 8 hours in freezing mountains. Another advantage is the presence of two cups and two stoppers.

This is my second Esbit thermos – I alternate between the 0.75 and 0.5L versions (plus for the identical stoppers). Highly recommended, it maintains temperature brilliantly, which is the most important, and the 0.5L model is exceptionally light and convenient to use.

In my opinion, Esbit thermoses are the best on the market – they are well-made and their ability to retain heat is truly impressive, even after 24 hours the drink is still hot. Highly recommended, I already own three myself!

I have been using this thermos for several months already, and I think it's hard to find a better one for this price. There are no coatings that could wear off, and the silver color looks good. Under the right conditions it keeps the temperature for a very long time, is solidly made, and having two cups and stoppers included is a big plus.

I already have the 0.7L model and decided to buy the 0.5L one. Both thermoses keep temperature well. I recommend!