We are reviewing the Thermos Ultimate Series Flask. This flask comes in a 900ml and 500ml version, this is the 900ml. I have to say that I love this flask.
the advertising claims are bold saying that this flask can keep things hot or cold for 24 hours. Now I have tested this overnight and the tea did indeed come out steaming after
18hours. I have since used this summer and winter and I can honestly say that this the best flask I have ever owned. The key to keeping things hot in any flask is always pre-warming
the flask. Pour in a little boiling water, swill it around, close up the flask and let it sit for 5 mins before emptying it and pouring in your tea or coffee.
The flask is stainless steel inside but wrapped in this light weight plastic coating. It weighs just 390grams and has silicon rings and bumpers to protect it from a fall.
You even get a 5 year guarantee with it.
I love the pouring spout, this means with a simple twist you can pour out your liquids without fully opening the flask. This helps keep it warm inside when doing multiple tea breaks.