2006-06-16 01:35:15 · 15 answers · asked by alboy 1 in Food & Drink ➔ Other - Food & Drink
The microwave are light waves that can either be absorbed or reflected, (ie. they just pass thru the given material)
I've heard that microwaves are absorbed in both water and fat molecules. Once the microwave is 'absorbed' it's energy is absorbed, it 'excites' the molecule by moving it faster, - and that's what (higher) tempatures are, more excitement / movement of the molecules.
2006-06-16 01:38:14 · answer #1 · answered by MK6 7 · 0⤊ 0⤋
Some types of plastic will melt like plastic bags, but a plastic container won't melt because the microwave machine gives off microwaves and not heat waves. Its a different type of heat and not usually as hot.
2006-06-16 01:41:42 · answer #2 · answered by cgc17788 4 · 0⤊ 0⤋
I'm assuming you're talking about a plastic bowl or plate.
A microwave "cooks" by causing the water molecules in a substance to accelerate. The friction of these molecules striking each other generates the heat and does the cooking from the inside out.
The molecular structure of the plastic allows the microwaves to pass on through without effect.
If you cook something in a plastic bowl for too long, it too will begin to melt. But your food will be long past the edible stage .
2006-06-16 01:42:08 · answer #3 · answered by J.D. 6 · 0⤊ 0⤋
Although naturally plastic would melt when exposed to heat of microwave status, some plastics have been improved to be microvable for that very reason: so that people won't need ceramic or glass to heat in the microwave.
2006-06-16 01:41:41 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It melts in the microwave because the microwave get really hot and since it heats up food, it will melt things too. You can't put anything metal in the microwave also.
2006-06-16 01:39:25 · answer #5 · answered by Shay 2 · 0⤊ 0⤋
Some plastics will, in time, if the temperature gets high enough. Many plastics ware is constructed to be microwave safe.
2006-06-16 01:39:52 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Because those plastics are kind of plastic that do not melt under high temperature in mictowave.
2006-06-16 01:43:44 · answer #7 · answered by Anonymous · 0⤊ 0⤋
That is not a fact, some plastics do melt.
2006-06-16 01:57:14 · answer #8 · answered by msria1979 3 · 0⤊ 0⤋
Sure it does. You just aren't cooking it long enough. There was a recent scientific study warning of the dangers of eat under cooked plastic form microwaves. So please be careful and make sure that the next time you cook your favorite plastic dish that its cooked thoroughly.
2006-06-16 01:45:51 · answer #9 · answered by skyyn777 5 · 0⤊ 0⤋
Plastic may melt when what is being cooked becomes too hot.
2006-06-16 01:40:09 · answer #10 · answered by moulunex 4 · 0⤊ 0⤋