tofu sheets These thin, tough sheets are sold in cellophane-wrapped packages in many East Asian stores. The sheets are produced during tofu making, when the top layer is skimmed off the tofu milk as it is firming up (rather as cream is skimmed off milk during cheese making). The skimmings are then dried out. They can be soaked and then used as wrappers, or, more commonly, cut into smaller pieces and used as an ingredient in soups, stir-fries, and stews, especially in the vegetarian cooking of China and Japan.