Looks like a lava shader material preview but instead of a ball they used something food shaped.
If it's red from black-body radiation, you should be more than fine with regards to contaminants.
You should be more concerned with nutrition. Or the current complete lack thereof. After all, anything healthy has by that point gone up in smoke.
Not to forget that if it's glowing red, it may be hot enough to set your head on fire the instant you stick it in your mouth. So do not eat anything that's glowing red from black-body radiation
Stickers like "Do not attempt to dry your cat in the microwave oven" are there for a reason.
If the item shows any black-body radiation in the wavelength range of visible light, i.e. it can be seen with the Mk. 1 Eyeball, it's absolutely too hot too touch, let alone eat.
Just pop it in the microwave with some tinfoil around it to keep in the heat, that should solve the issue
Here is an alternative Piped link(s):
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I'm open-source; check me out at GitHub.
Due to being so far from the sun the Voyager can't rely on solar panels. Someone at NASA cooked a fish like this and put it on the probe. The heat it still radiates will keep powering it for millenia.