Beautiful fabrics. Just wanted to tell you that. I hope they are all right in the microwave. I don't have the answers.

The metallic will spark & catch fire.

I would just try it for about 10 sec if it is going to spark you will know and can shut it off.

How many of us have accidently put a fork or spoon or foil in the microwave and caught it after the first few sparks and pops? It did not blow up your microwave then.

The fabric is "paint" with gold it does not have real "gold" on it. I would bet your fabric will work just fine and be beautiful gifts.

CAT

There is no way I would put ANYTHING metalic in the microwave. Just replaced mine because I did not pay attention to a silver border. Unless you know for a fact that your metalic fabric potato bags won't blow up in your friends ovens I would use that beautiful fabric for something else. What if several ovens blew up and they expected you to replace. The thought is so horrible I hope you do not make them pretty.

Not all metallic looking objects have issues in the microwave. I have a couple of coffee cups that have no issue; the coffee heats up and the handle stays cool. Do the test; make sure there is moisture in the microwave when doing it. Since you'll be using it with a potato; then I'd let that be the moisture part; if you use a cup of water which will be more moisture than you would have with a potato then you might get different results. The fabric is great.

I had a cup with a touch of gold in it and it sparked but that was all. I would just try a small piece first as all the comments stated above.

Pat

I would not take a chance on putting anything metallic in your microwave unless you don't want that microwave, it might catch on fire of cause a small explosion, why would you take a chance on either by doing a test? Be safe and use different fabric and skip the test!

The matalic gold actually is not real gold but acrylic paint with flecking to make it look that way and I don't know what the flecking is made of. The acrylic may melt in the microwave and could start a fire.

All that's been said about metal in the microwave I have also heard (and experineced when I forgot) however, I just read an article about using aluminum foil around the edges of your pans in the microwave to keep the edges or corners from getting hard. I can't remember where the article is. I will check and let you know.

I agree with wolfkitty. That fabric is too pretty to use for cooking!