Nifty
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Posts: 5,034
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Post by Nifty on Apr 25, 2024 10:17:03 GMT 1
Mast year I bought a small thermos flask with the express desire of keeping my morning coffee warm as normally half of it has gone cold by the time I get around to drinking it. Not that I am particularly busy these days but for some unfathomable reason I seem to get side-tracked. About a month ago I dropped the flask and shattered the vacuome insert. I tried to get a replacement but could not find a source for them. I felt a bit disgruntled about the waste of €3.50 that the flask had cost and decided to forget about my intolerance of lukewarm coffee.
Image my delight when we were having a trawl around one of those shops that one goes to with the intention of buying a certain item or so and come out with a load of stuff that you did not realise was a must-have, a fag, and, if consumable, before you finish the packet of whatever, you probably realise the error of purchasing it in the first place and vow never to make the same error again.
Anyway, imagine my delight when I found a small stainless steel thermos type vacuum flask for about €10.
It has been keeping my coffee warm while I have been broadcasting this priceless information absolutely FOC.
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Post by beejay on Apr 25, 2024 12:15:49 GMT 1
I find the stainless steel type do not keep the contents hot as a glass interior version. The glass type are double walled so the air gap acts as a thermal barrier. I drink my coffee from a double wall glass goblet like THIS |
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Nifty
Member
Posts: 5,034
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Post by Nifty on Apr 25, 2024 14:08:09 GMT 1
Re. Heat retention, that would seem to be the case but it in this case all is good because
it keeps the two thirds of a mug that I can be tardy about drinking hot for about an hour.
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mysty
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Post by mysty on Apr 25, 2024 16:25:03 GMT 1
I find the stainless steel type do not keep the contents hot as a glass interior version. The glass type are double walled so the air gap acts as a thermal barrier. I drink my coffee from a double wall glass goblet like THISBoiling hot water not hot water from the tap. Fill it up 5 mins before you fill it with coffee and it stays hot for a couple of hours. Tip out the hot water before filling it with coffee.  |
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Post by lapourtaider on Apr 25, 2024 20:02:35 GMT 1
I find the stainless steel type do not keep the contents hot as a glass interior version. The glass type are double walled so the air gap acts as a thermal barrier. My stainless Steel thermos is double walled, aren't they all? |
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Nifty
Member
Posts: 5,034
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Post by Nifty on Apr 25, 2024 20:18:48 GMT 1
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Post by norfolk on Apr 25, 2024 20:24:47 GMT 1
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Nifty
Member
Posts: 5,034
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Post by Nifty on Apr 25, 2024 20:41:36 GMT 1
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Nifty
Member
Posts: 5,034
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Post by Nifty on Apr 25, 2024 20:55:11 GMT 1
Fec nose
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Post by cernunnos on Apr 26, 2024 8:33:34 GMT 1
We solved the problem of cold coffee a while ago when we ran chambre d'hotes, a coffee machine with a thermos can incorporated, simple but works a treat.
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Post by Polarengineer on Apr 26, 2024 11:58:58 GMT 1
We found guests all had varying tastes in coffee, so we now have a small machine that can take any size capsule, pad or ground coffee for individual cups.
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Post by beejay on Apr 27, 2024 13:04:43 GMT 1
I find the stainless steel type do not keep the contents hot as a glass interior version. The glass type are double walled so the air gap acts as a thermal barrier. My stainless Steel thermos is double walled, aren't they all?
Those I've looked at are single skin s/s inner in s/s outer so are double wall but there is no vacuum between them. A flask which has a double wall glass inner with vacuum between them is much more effective in retaining the heat of the liquid content.
Tests seem to confirm glass inners are much better at retaining heat (or cold) than s/s inners but are more prone to breakage with poor handling..
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