Enamel utensils are made of metal and coated with a thin layer of enamel for aesthetic reasons. The inside of the pot is usually colored white, while the outside is decorated with different colors. Enamel is made of sand like glassware, but it is processed differently. Great uncertainty arose regarding such utensils. At first, poskim were uncertain because the craftsmen kept enamel’s composition secret. Then, when it became known that enamel is made of sand, uncertainly arose again as to whether such utensils have the status of earthenware.
In practice, the poskim rule that one may perform hagala on enamel utensils like all other metal utensils, and some recommend performing hagala three times. Yet regarding Pesaĥ, some instruct not to perform hagala on enamel utensils in light of the severity of the ĥametz prohibition.