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Vacuum insulated cups: Holy Crap!

Groogrux said:
Do they sweat? I cant stand the water rings left behind every time I set my cup down.
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Not from their contents. Obviously they will if taken from a very cool place into a warm humid place - as would anything else (including my iPad screen cover). ;)
 
BrewerBob said:
I hate that too. They don't sweat a drop.
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Fishking said:
I've had the Yeti, which I accidentally lost, and now have the Ozark one. No sweating.
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ttwtt78640 said:
Not from their contents. Obviously they will if taken from a very cool place into a warm humid place - as would anything else (including my iPad screen cover). ;)
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My friend uses THESE for cold beverages and loves them. It would be nice to have one travel cup for both hot and cold beverages. I have a cabinet full of different ones that I don't use.
 
I actually do have an issue with both the Yeti and the Ozark, and it's actually a pretty big one with me that I would rate them both 4 stars instead of 5. Both of their lids (they are identical in design) just have holes in them with no way to seal them. This means that if you have it full and you hit a bump they can have spillage. Or if you knock them over, they will spill.

I have zero clue as to why to don't make more of a pop/flip top design. It's soooooo annoying.
 
The other day I was bemoaning the scorching sun and thought to myself: how amazing would it be if there was a container capable of perfectly preserving the temperature of whatever I pour into it. And voilà, I stumble across this topic .
 
Fishking said:
I actually do have an issue with both the Yeti and the Ozark, and it's actually a pretty big one with me that I would rate them both 4 stars instead of 5. Both of their lids (they are identical in design) just have holes in them with no way to seal them. This means that if you have it full and you hit a bump they can have spillage. Or if you knock them over, they will spill.

I have zero clue as to why to don't make more of a pop/flip top design. It's soooooo annoying.
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They do. They are sold separately, and not inexpensive. Evidently there are knock off lids that are reasonably priced. https://www.amazon.com/s/?ie=UTF8&k...argid=kwd-242638838407&ref=pd_sl_77cbsfqnwq_b
 
BrewerBob said:
How am I just learning about these things? They are stainless steel and vacuum insulated. The vacuum between the layers of stainless steel prevents the heat exchange you have with most insulation.

I know Yeti is the more expensive hipster brand but I got the Ozark Trail one that is at least as good. I had it filled with with ice and soda and left it in 95 degree temperatures outside all day. When I came back to it that evening it still had what appeared to be all the ice. I know it melted some but it wasn't enough to dilute the taste.

Easily one of the best purchases I have made. They're like magic.

I'm guessing I'm late to the party on this.
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The concept, a vacuum layer is over 100 years old, only the materials have upgraded as prices for stainless come down,

https://en.wikipedia.org/wiki/Vacuum_flask

The concept is also used in thermo-pane windows
 
BrewerBob said:
How am I just learning about these things? They are stainless steel and vacuum insulated. The vacuum between the layers of stainless steel prevents the heat exchange you have with most insulation.

I know Yeti is the more expensive hipster brand but I got the Ozark Trail one that is at least as good. I had it filled with with ice and soda and left it in 95 degree temperatures outside all day. When I came back to it that evening it still had what appeared to be all the ice. I know it melted some but it wasn't enough to dilute the taste.

Easily one of the best purchases I have made. They're like magic.

I'm guessing I'm late to the party on this.
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They have had this for decades. The most common then and now is the green steel stanley thermos, which is vacuum insulated. They were famous because they would hold temp for hours and lasted decades and were dirt cheap. Infact vacuum sealed thermos of different brands have been in use over a hundred years, i am just surprised it took this long to transfer it to cups.
 
Fishking said:
No...thermos aren't vacuum sealed, I don't believe. These things hold the heat/cold a ridiculously long time.
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thermos is vacuum sealed and has been since the brand name was created in 1910, if you are referring to a thermos that is not of the same brand name, that has been done since 1892.

https://en.wikipedia.org/wiki/Vacuum_flask
 
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