Will it insulate/be functional for heated beverages? If so, for how long?
547384
http://polarbottle.com/ Click FAQS link for the following info: The Polar Bottle Thermaluxe performs the best for hot liquids. According to our tests, in a standard mug, water at a rolling boil (201F) at 5,430 feet above sea level will drop to a temperature of 118F in about a half an hour. In the Thermaluxe, on the other hand, the water took five and half hours to drop to 116F - an impressive 11 times longer than a standard mug. Hope this helps. Cheers!
547385
Didn't try it with hot beverages, but it doesn't keep things cold very long.
547386
http://polarbottle.com/Click FAQS link for the following info:The Polar Bottle Thermaluxe™ performs the best for hot liquids. According to our tests, in a standard mug, water at a rolling boil (201°F) at 5,430 feet above sea level will drop to a temperature of 118°F in about a half an hour. In the Thermaluxe™, on the other hand, the water took five and half hours to drop to 116°F - an impressive 11 times longer than a standard mug.Hope this helps.Cheers!
1643499
Absolutely not. The exterior stays cool even with boiling water. Hot drinks stay that way for longer than with a ceramic mug though, so be aware of that.
1500297
Nope, not properly insulated - just think of it in this way as any other plastic water bottle.
1326568
Well glass is the best insulator, but mine was broke when I got it, not packed well, and If you drop it once on way out to car or where ever it will break. So forget that, buy a stainless steel one of some and you will be really hot for about six hours. I love my coffee hot, so later in day buy from machine. I have looked for three years for a really really good insulated on but cannot find.
1065768
Do not rely on this for that type of warming--depending on the quantity you need, a cup that is already warm will stay warm. I just do not think it will be your first consideration.
1555441
not too long and is not spill proof, but is very tough and looks durable, i you want something that will keep it really hot for long time try the Thermos vacum insulated, i had one and is awesome but is more delicate than this.
1659812
If you want to keep something warm for a longer time I would recommend the Thermos lite series stainless steel isolating bottle. I only use it for brewing tea at work and drink it within 10 minutes.
1907311
The cup would hold hot beverages just fine, but copper is a great conductor of both cold and heat. I just put some HOT water in a mug and within 30 seconds the cup as well as the handle became too hot to hold. If you were to wear an oven mitt while drinking your hot tea or coffee you should be just fine, but for bare handed use I would not advise it!
1223330
Similar weather to where I am. It will get cool in about 2 hrs. If the drinks are cold going into unit they will lose some coolness within first hour then be maintained at that temperature until around 2 hrs when they start to really cool down. Long trips or short stops will keep it all KOOL
1509747
I don't believe so. It's a relatively light mug which is great for travel and it does do a good job as a heat capacitor for a good while. I've had drinks stay hot up to an hour. Depends on the environment. A great mug regardless.
505109
No, it won't. It's only a warmer, meant to hold the temperature of the liquid that is already hot. Even at that, if you don't immediately put the filled cup on the PRE-HEATED warmer, it will go cold in little time. A possible solution: as soon as the coffee is ready, pour half in the cup you'll use right away and the other half cup on the warmer. When I did that, the coffee stayed quite hot and didn't cool. It probably seems a bit of a hassle when traveling, though. Good luck.
900210
I've done it although it is made of hard plastic. I prefer to use it for cold drinks. If you want something for hot drinks, I recommend the Thermos vacuum insulated bottles.
1286200
No. It might keep it warm for an hour or so. But not for a long period of time.
502524
Not at all. I've had this mug for about 4 months now, and it's been nothing but absolutely great. If you put hot stuff in there, you can expect it to stay hot, without affecting the temperature of the outside of the bottle. In fact, you can just consider the outside of the bottle to be almost completely isolated from the inside, as the isolation is done extremely well.
1645502
No, it is insulated to keep the heat in, in my opinion it is not worth the money, it does not keep hot beverages hot much longer than a regular cup, or colder than a regular glass. I purchased a stainless steel insulated thermos that keeps ice for 2 or 3 days, and hot at least 24 hours if you don't leave the lip off all the time. For the hot it still would keep your hands warm. Hopes this helps.
394533
Yes...it will handle tea, coffee, etc as long as it's not 'boiling'. I think the plastic will take it, it just get more rubbery/flexible. Regular warm drinks are fine. Obviously, you can't heat anything in it. We bought as requirement of Girl-Scouts, but I'd personally prefer to use military surplus or porcelain coated steel which are far more utilitarian (but indeed heavier).
2048241
No this is not insulated per se. It may keep it warm for a little bit, but i use a thermos instead for things that need to be kept warm.