Double Thick Crochet Potholder / Hot Pad Free pattern! This easy-to-make crochet potholder is double thick to protect your hands, counters, and table. A pretty, yet practical gift that will last for years. I make these for gifts and people always love them. I like to use cotton yarn because it is insulating and machine washable. Unlike some yarns, cotton will not melt when you put hot pots and pans on it.