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News Individual vacuum flask| Individual vacuum flask | [2009-05-25] |
| I will talk about the individual vacuum flask and their attributes below but from the testing and my experience I have learnt some points. First there is a performance price to be paid for size and convenience. If you want the convenience of a smaller vacuum flask it will cool quicker. If you have a larger capacity vacuum flask that has thin walls, it will cool quicker. The Thermos vacuum flask (and the one Russell uses) are bigger than some of the cheaper flasks of the same capacity. Convenience wise the easy pour lids that allow you to pour by pressing a button or lifting a tab seem to lose heat faster. I would like to have tested the Lifeventure vacuum flask with a Thermos lid but it does not fit. When you take off the cup the Thermos Work vacuum flask lid was cool to the touch. The lids of the other vacuum flask were all warm to the touch, a sure sign more heat was escaping this way. I would even be inclined to say the lids were probably the biggest factor in the different results. I would also say the cost difference between the top vacuum flask and the bottom is not that great. Given that these steel vacuum flask ast a long long time it seems worth getting a good one. As stated the tests are scientific in that I took great care getting the readings but also subjective as the vacuum flask are different capacities and were not tested in laboratory conditions. |
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