Is it okay to microwave glass?

Yes.

The problem is not with the glass itself, but with a sudden change in temperature.

The part of the glass that is in contact with the heated food will expand, while the top that has no contact with it will remain unchanged. This will cause a difference in the tension in the glass walls which will break them.

Tempered glass will tend to resist this much better.

However, always follow the manufacturer's indications. And when in doubt, just don't do it.

Yes i have glass plates and they are ok in the microwave.

yep, however, depending on the temp of the microwave, u might chance busting the glass........oh yeah, no metal, altho that does cause neat little bolts of lightning in the wave LOL

Absolutely

Yes they are probably the safest thing to microwave

pyrex glass yeah...

check the bottom of the glass thingy...

if you see wavy lines with a line over them, it means the glass is not microwave safe...

yea its okay but it depends how high the microwave is

depends on the megawatts on the microvave cotents can be extremly hot though

As long as it didn't come from the dollar store.