Choose fibers that can stand the heat. Yarns with 100% natural fibers, such as Lion Cotton® and Lion® Wool, have a natural ability to withstand high temperatures. (In fact, wool is naturally flame-retardant!) Plus, cotton and felted wool are both machine-washable. If you're unsure whether your yarn will work as a potholder, check the label -- if it's able to be ironed, it's perfect.
Thick fabrics make happy hands. A thin knit may be flexible, but it may allow heat to transfer through too easily. Choose a knit or crochet stitch with thickness, like a cushy garter stitch or a sturdy single crochet. If you're working with wool, try felting your work: felting shrinks the stitches together, making the fabric thicker and more solid.
Stay closely stitched. Using an open stitch is an absolute no-no! If you are a loose knitter or crocheter, try trading in the hook or needle size you would normally use for something two (or more) sizes smaller. This way, your stitches will sit closer together, eliminating any gaps in your work.
Do you have any potholder-making tips or stories that you'd like to share? Let us know in the comments.