http://tipnut.com/make-your-own-potato-baker-bags/

Here is a link on the how-to's :):)

My DH puts potatoes in the micro for 20 minutes and then puts them in a hot oven for another 30-45 minutes! He has asbestos hands, so he just grabs them or uses a towel.

Apparently you are supposed to read the directions. My gf bought one at a craft fair, and got to use it exactly once. She completely burned the bag and potato. hehehe Silly girl!!!

This is the pattern/instructions that I'm using for my co-workers for their sewing class. This site also has a nice freebie embroidery design to go on the bags. I decided that they would make two bags in class. One bag has the "potato" print fabric and the lining will be flannel. The other bag will have regular quilting cotton inside and out. I've made two of these bags so far. One bag I stippled and the other bag I didn't quilt. The non-quilted bag took about 30-35 minutes. It actually goes pretty quick. I still need to make a bag without flannel to see if there is any difference.

http://www.embtreasures.com/projects

When making the potato bags can you use the bleached muslin?

For fluffy baked potatoes use baking potatoes, the loose ones in the bins and pick the smaller size ones, the bigger the size the more time the starch content had to develop.

My mom and I use Warm and Natural when making our potato bags, and just plain cotton material on the outside.