Can these be used in Ice Coffee or would the heat cause them to rupture?
1713322
Honestly I don't think the heat would cause them to rupture. HHowever this is the only thing I wouldnt recommend them for. ...unless you've already iced the coffee and wanna use them to keep the coffee cool on a commute to work, etc. But these have held upto A LOT of wear and tear ....day in and day out. So I maybe surprised. Please let me know if u give this a try. :)Curious now lol
1713323
I have not used them in a hot beverage, but I don't think that it would cause them to rupture.
1713324
i never tried to use them in iced coffee. if the coffee is just warm i assume that they would work ok. i don't know about putting them into hot liquid!
1713325
Not sure they do say not to use in alcoholic drinks. So coffee might not be a good idea either.
458366
Yes you can use them for hot liquids, however, I would avoid extreme temperature changes because they are glass and they will break.
240838
SO: 2 answers, we just use cold. But in general, with glass (or ceramic) breaking comes from thermal shock. If you warm the mugs first, with hot water (rather than pouring the boiling water in them when they are cold) you will be much less likely to have problems.
271383
I pour pots of hot coffee into it, and let it cool to room temp before putting it in the fridge. I would be afraid of it cracking from "cold shock" just putting it in the fridge with hot liquids.
1738022
There should be no problem, but I do not see a good reason to do it. Not even for reheating coffee. I would never reheat coffee.
609240
The one problem we have with these is that people use too much water. This is a case where less is more. If you add too much water, it dolutes the chemicals and you don't get any heat. If you add a little too much, it won't get to boiling. So yes, they can get to boiling, but most people add too much water. And it's the water in them that boils. I have never heard of someone using them to boil a larger container of water. Any chemical reaction has a certain amount of potential energy. If that energy is less than the amount needed to boil your quantity of water, your water won't boil. So theoretically you could use several of these to boil a pan of water. But basically, one packet will make you a piping hot 12oz mug of coffee. Enough for stew or a whole pot of coffee? Probably not.
1911933
I haven't tried it myself, but I know some folks who have tried heating it up and have said it isn't as good. Just because this is for cold brewing, I would recommend sticking with cold coffee.
1216418
I wouldn't myself - I think it might get too hot and crack the cup - especially when "blow torching" the tops at the end. Just buy cheap ramekins.
636627
I used them for cold beverages. But where they are glass I would think hot drinks would work in them as well.
1713602
I would assume so. If heat destroys it in cooking, I would be afraid to use it in the coffee. Not 100% sure, though. To be safe, I don't use mine in hot food.
86084
Not so much. Heat is quickly translated to the pitcher and handle making it a dangerous proposition for coffee pouring and pitcher handling. Same goes for the cups. Best for cold and iced beverages!
1261185
Yes, that's what I used them for (until they broke from being dropped a small distance). I don't know if the hot coffee somehow made them more fragile - I would hope not because I think that's their purpose.
1968435
Of course not, they would melt!! :-) This unit is awesome, definitely worth buying!
689664
Nope, they are for espresso, so it will be handle-able. If you fill it with hot coffee to the top, maybe it will be an issue. But it's ideal for 2oz or lungo 4oz shots in my opinion. I do not hesitate to buy again :)Tehre are others with insulation, but i think that is more to keep the coffee warm as opposed to protection from burn
1273113
Yes you can but, it won't be hot. I returned two because the first one was missing parts,the second one the coffee was not hotand it had electrical defects.
1554379
I have only done this once when I was heating up something frozen for my daughter. The Frego did not shatter in the process and I heated it to boiling. I think since it is a slow transition from cold to hot, it does not shatter the glass. Hope that helps.
194589
I'd agree with the previous answer. If they're just being used for oatmeal, cereal or stirring coffee, I think it'd be fine to use them. Scooping frozen ice cream from a container, however, wouldn't work. Hope this helps give you a point of reference.