How much heat have these been exposed to?
999191
I don't know - I think that would be a great question for the manufacturer. Happy searching. :)
999192
Supposedly none. They're supposed to be raw. But I can smell them through the packaging so it means the seal is not tight and the beans have been drying out for I'm not sure how long. The company said they buy in bulk and put in their own bag.
1445508
No, they haven't for me. I do not use high heat, though. Medium high is best.
1897376
I know that they can stand a lot of heat, but why take the chance? This would be over a lot longer period at a very high temperature and since it's not difficult to just remove them, why not be on the safe side?
2151517
I have had mine for a bit now too. And Haven't used them. I don't think they go bad. as long as they don't get warm your good.
311113
They can get well over 120* F, They WILL burn reptile feet and bellies if you do not have them plugged into a Thermostat controller
779282
they burned a good 4-6 hours-i used them for a thanksgiving buffet at my house-though i did learn not to have them on top of a vinyl tablecloth!! lol-melted a little but didnt hurt anything.
252124
They don't get that hot. not at all. You can hold them in ur hand and be fine
1148029
I can't give a precise response...but I can say that the amount of heat is not very high at all. If you are using them as growing lights in a cool space (as I am), heat pads are the ticket to provide an increased soil temperature.
1151494
They get warm but not hot. I would think the worse that might happen is the plastic might yellow after years of being warm.
254159
I can only answer from my own experience with an 8 foot ceiling in my kitchen. I don't experienceany unusual heat from them.
1333116
Gosh I've had them for awhile now and not sure. What I can tell you is that I've taken stoneware out of a 425 degree oven and it might get a little hot but the versatility of 5 fingered gloves is worth it. I've never gotten burned using them although mits will provide extra heat protection.
1961312
The risk would be to the glass lids at higher temps. I have used them without incident up to 375 degrees.
1031501
I used these for craft projects without heat, so I'm sorry I can't advise you on this further.
121592
I understand your concern in regards to getting hot, but I believe you should be fine with these. I ran a half marathon in these and never got over-heated.
1542227
Should be fine. They have been fired at a much higher temp. They are made for the heat. We use ours for everything.
1070217
I put them in a small baggie and keep them in my bike jersey so heat is not an issue. They're powdered so just keep them dry I suppose. I leave them in my car with no issues.
1493487
i have used them up to 450 degrees.They are made of the same silicone that hot pads/mitts are made of - I believe that they can be used to higher decrees.