hunterman927 Posted February 4, 2017 Report Share Posted February 4, 2017 First off, let me say hello... I've tried using the search feature on this site, tried searching for videos on youtube, and other forums as well for my question. So here is the question, Can you use pyrex cups with a hot plate to keep plastic warm? I know in the "dont's for newbies" sticky, someone posted that its a don't. I've seen videos on youtube where a guy was using a hot plate and had his pyrex cups sitting in it. I just don't wanna go buy a hot plate and something go wrong and get burned... I use a microwave has of right now but I have a bad problem with little bubbles when I go to reheat the plastic.... Oh how I hate those bubbles. Quote Link to comment Share on other sites More sharing options...
Apdriver Posted February 4, 2017 Report Share Posted February 4, 2017 I put mine on a hot plate. It has sides though. Quote Link to comment Share on other sites More sharing options...
hunterman927 Posted February 4, 2017 Author Report Share Posted February 4, 2017 Thank you for the reply. Quote Link to comment Share on other sites More sharing options...
alsworms Posted February 4, 2017 Report Share Posted February 4, 2017 I never used pyrex cups on hot plates. Just used tin cups, but I've heard horror stories about pyrex cups exploding on hot plates. Someone please chime in and correct me if I'm wrong, but I've always believed: pyrex in the microwave = good. pyrex on hot plates = disaster. Just my 2 cents. Quote Link to comment Share on other sites More sharing options...
hunterman927 Posted February 4, 2017 Author Report Share Posted February 4, 2017 Yeah I'll probably just stick with the microwave and bubbles for now. Just to many things that could go wrong imo. I was just trying to possibly get away from the bubbles when I reheat my plastic. Thank you for the reply. Quote Link to comment Share on other sites More sharing options...
Frank Posted February 4, 2017 Report Share Posted February 4, 2017 Let me just say a hot plate has an exposed coil which heat come from direct tot he bottom of what you are heating. I use an electric pan/griddle. The heating element is in the bottom and does not come in direct contact with the Pyrex. You could use a hot plate if you put a pan on first and the Pyrex on top. Not sure how you think it will help your bubble issue. Maybe with less reheats? 1 Quote Link to comment Share on other sites More sharing options...
Apdriver Posted February 4, 2017 Report Share Posted February 4, 2017 I guess I didn't think about the differences of hot plate and griddle. I use an old fondue pot with sides. The Pyrex doesn't sit on an element. It's more like a griddle. Second hand for 3.00 at the resale shop. It has thermostat. 1 Quote Link to comment Share on other sites More sharing options...
hunterman927 Posted February 4, 2017 Author Report Share Posted February 4, 2017 Frank, thank you for the response. Yes I was hoping there would be something out there that would eliminate the reheat in the microwave. For some reason when I start the reheating process, at about 330-335 degrees, bubbles form??? Why only on the reheating? Quote Link to comment Share on other sites More sharing options...
hunterman927 Posted February 4, 2017 Author Report Share Posted February 4, 2017 I am not a kitchen appliance guy.... that's the girlfriends area. Will an electric skillet work??? I sure wish I could cook this stuff over some charcoal.... I could do that. Quote Link to comment Share on other sites More sharing options...
toadfrog Posted February 4, 2017 Report Share Posted February 4, 2017 I use a Nu-wave cooker . It looks like a hot plate but the surface never gets hot. You have to use a pot that a magnet will stick to or it won't heat the plastic in the container . Has accurate thermal controls and can be set for any temp over 100 up to I believe 475. It can also be set for when you want it to shut off up to 99 hrs. Pyrex is a no for me . Eventually going from hot plate to microwave it will in time develop a fissure that will cause an explosion of glass and hot plastic . Been there done that twice over the years . The best thing I've found as an alternative for Pyrex is ceramic cream cups with a spout so you can have a hand pouring option . Ceramic also stays hot longer . Had those crack with continued use but not blow up. Find those cheat at thrift stores . Be sure they don't have gold leaf paint on them . Also never sit hot glassware on a cold metal surface you'll be sorry . 1 Quote Link to comment Share on other sites More sharing options...
mark poulson Posted February 4, 2017 Report Share Posted February 4, 2017 I built a house for a guy in the late 70s and he put in one of those Nu-wave type cook tops. He also had special pots, and the cooktop never got hot, only warm from the warmed pots. We had to get clearance from the Federal Aviation folks, because, at that time, it was thought that the radio frequency used to heat the pots might interfere with a plane's onboard navigational systems! I'm pretty sure that's not an issue anymore. Quote Link to comment Share on other sites More sharing options...
alsworms Posted February 4, 2017 Report Share Posted February 4, 2017 Not trying to start a plastic war (as we've had PLENTY of those,) but bubbles are usually caused by bad plastisol, a bad batch of plastisol, or somehow you are allowing moisture in the mix. You might want to check with your supplier. Quote Link to comment Share on other sites More sharing options...
hunterman927 Posted February 4, 2017 Author Report Share Posted February 4, 2017 Lol, yes, no plastic wars.... moisture is a good possibility. I've never really thought about that. I guess it could get in it when it starts cooling down and I warm it back up? I always just though it would get in it from the get go of it was going to be a problem. I'm working down here towards Galveston, TX and humidity is always a factor. I store my plastic inside my camper and never take more than what I'm going to use outside. I really don't know, I'm gonna stick with the microwave option for now I guess until I find a better option. Thank you for all the replies and ideas. I will start researching them more. Quote Link to comment Share on other sites More sharing options...
Frank Posted February 4, 2017 Report Share Posted February 4, 2017 (edited) That pan will work just fine. I have one like that and a square one. When I use four two cup pyrexs I use the square one. Keeps the heat down a bit if it is full of cups. As for Pyrex breaking it does but it is also much safer to set them down on something hot than a cold table. Those types of cups are available in the standard newer type and the old school lab type glass. Have them both and had one break in eight years of pouring. Edited February 4, 2017 by Frank Quote Link to comment Share on other sites More sharing options...
