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!
1947438
It will stay hot much longer than it would in a regular ceramic mug, and the outside will stay cool. After 20 minutes or so you might want to microwave it to warm it up.
1198860
Well I'm not sure if it insulates as well as you'd like it to but it did maintain frozen ice and kepts drinks cold in the Florida summer heat. A smaller cooler could fit in it but depending on the size would be a tight fit.
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.
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!
240967
It has a rotating spout that you could drink from. I wouldn't advise it for hot drinks as it keeps them at such a high temp. No problem with cold.
1065770
In my opinion, this is designed to keep already hot beverages warm. I don't think you will get positive results attempting to actually warm from this. It does get hot but not hot enough to warm water.Hope this is helpful.
1863712
It's a hard plastic and I would imagine it could hold hot water, but it would feel hot to the touch. I'm not sure why you'd want to use this for hot water though. You'd be better off with an insulated cup.
2068274
Hot??, that's subjective. If unopened it would keep hot liquid fairly warm. Best you can expect, subject to outside temperature
1286200
No. It might keep it warm for an hour or so. But not for a long period of time.
468143
Won't be too hot to drink, but well enough as a hot drink. Even you place simple cold water on it, it will turn to warm temperature.
1395521
I Took it on several 2-4 hour road trips with ice water and the ice is always still there. It does a pretty good job of keeping things cold as long as it is not in direct sunlight. I actually dont think its meant for warm/hot drinks but I could be mistaken.
2196698
I wouldn't use it for hot beverages myself, though it would certainly keep them hot. The problem is, it uses a straw, not a "sippy-cup" style spout, so it would be very easy to burn your mouth badly. Also, though the mouthpiece is silicone (and thus would be fine with even the hottest drinks), the straw is (BPA free) plastic, and I'm not sure how well it would hold up to heat.
1251899
I didn't try warm beverage. I tried it with cold water/juice and it holds cold temperature for hours.
427071
I don't think you'd be able to carry the degree of heat it would take to deform this heavy duty plastic. However, I don't think it would be suitable for hot beverages because there is no sort of heat insulation or protection.
2006292
It's decently insulated. It would keep food drinks cool for a couple hours without ice I'd think. We use cooler packs a lot which are nice because they don't melt
192465
Not really. It's just designed to keep hot stuff cooling down slower. It might heat cold water in an hour or so but not hot enough to make tea and that amount of time could damage the mug.