So we have a rule at work that everything in the microwave must be covered. I like to warm up soup. That’s tough to cover with a paper towel. I’ve devised an origami-like fold that holds up ok, but sometimes still ends up in the soup.
I was thinking that I could just create a quick X-shaped arc to place over the bowl that I could slip apart and keep in my desk. PG Acrylic seems like the right answer, but is it microwave-safe from both a melting and toxicity perspective?
Oddly, I don’t see why not. It needs to reach a temperature of 300 - 600 degrees Fahrenheit to melt, which it then goes towards a liquidy state that I’ve used to bend and even vacuum form (which is where that 600 degrees F comes in - you need that for the 1/4” thick stuff). It could still get hot, and I wouldn’t microwave it for longer than 5 minutes… but it’s not going to off-gas if that’s what you’re asking.
Good points. I have a certain “laziness-factor” that I work in (at least I’m honest about it). The idea of draping a paper towel over a minimal trellis as opposed to cleaning the lid… the paper towel is still winning.
For home, the silicone lids are an obvious choice.
I have formed cast acrylic by lightly passing a torch over it to slightly heat, form a little, then repeat until in the desired shape.
Have seen people use an oven for the same thing (around 300 degree) but I never felt the need to debate the wife on what does or does not go into her food making machine,
Not sure about temps in a microwave, but I would imagine cast acrylic would do a ‘face hugger’ routine like in Aliens once heated enough.
Acrylic is non-toxic. I’m not usre aobut the microwave thing, but there’s an old trick - put a scrap of it in a microwave oven along with a styrofoam cup of water. The water’s there to present a load to the microwaves.
Try ten or fifteen seconds, carefully check the temperature of the acrylic. If it didn’t get warm, try again with thirty seconds. Still no heat? It’s good.
I own’t tell you how to use a microwave to ‘erase’ a CD, but if you experiment with that, turn the lights out in the room so you can see the result.