Here I am with Soma holding the hot pot of boiling water. We were figuring out how much cotton batting to use and making sure the potholder works. Which, as you can see, it does.
Soma has sewing materials tucked away in cabinets in her house. First she brought out this roll of polyester batting that they use in some of the thicker blankets. That wouldn’t work to insulate the potholders, so then she brought out the cotton batting. Which was just right.
I suggest recycled wool skirts, terry cloth, and cotton sweatshirt material as insulation for potholders.