What is the hottest temperature of water these can handle? I want to use these with my Keurig for the "over ice" kcups but would they melt in 180f?
1267300
No, they don't melt, you're safe. I put them into my coffee right as the coffee comes out of the machine so it'll be drinking-temperature when the cup is done brewing. Really nice stuff!
837106
I'll give a qualified 'yes.' I've been buying these from another source (Amazon can't meet my quantities) but the same exact item and their specification says 200° F max. A word of caution though: I would not recommend taking the temperature too close to the maximum. I think you'll be fine at 140°F.
1772223
Linda, sorry I do not know...These glasses have not been put to any type of heat test. The density of the glass is greater than that of a regular glass. I trust someone will be of greater knowledge/information. I am guessing they could handle boiling water with no problem...beyond that???
1535469
I would add to the previous comment two points: Water boils at different temperatures depending upon one's elevation; I'm at 1380-1385 feet or so, and if I recall properly my water boils closer to 205*F than 212; so look up your elevation and factor in the correction. With regard to chips of ice and water, the temp will be a little higher than freezing, given the water is obviously not frozen; when I calibrate my thermometer probes for testing produce I look for a reading closer to 33*F, or 34*F, when left sitting in a glass of ice water; clearly the more surface area of the ice chips the better, and allow a few minutes for the temp to stabilize.
683859
I am using them in my Freezer. Works great! I believe they have a max temp - hot and cold.
1289624
They're worthless. Not made for anything except taking pods - such as Senseo pods - and shoving them into it so you can use it in Keurig. That's what they were initially made for. I use Solofil and Ekobrew, which are way better than the K-cup, which has a tendency to leak.
1165150
I would not use these with a hot beverage. They get super cold (colder than the beverage) with cold beverages. Using them with hot beverages could result in burned lips.
1968435
Of course not, they would melt!! :-) This unit is awesome, definitely worth buying!
1775336
I would imagine they would get too hot to hold - we only use them for chilled or room-temp beverages. But, you could get or make some kind of cozy to keep the heat from your hand...
2226300
I have never turned our down lower than 70 degrees and have never had any problems. I would think the fins would freeze over at 61 degrees. These are not refrigeration units.
304609
Extremely strong glass. Very thick. I would think if you left room for some expansion of frozen liquid, they should be fine. I have not tried freezing anything in them. This is only my opinion based on how sturdy they are.
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
680757
Yes, I think they are good to up to 500 degrees.. work great.. I set mine on a cookie sheet to stabilize it.
889704
This might be a question that should be posed to the compAny directly. I can't imagine that these cups would God up under that heat, but I've never tried it.
1012427
I have been using them for over a month now and I haven't had any problem. The spec says they should work up until about 149 degrees.
1916368
Don't know the exact temperature but they are pretty good. I use my roaster and crockpot on them. I also set my boiling water pot on them. So far so good.
1890801
Never tried freezing anything in them but a quick dip in hot water might be enough to release the ice without bending the cup... Good luck