When Durotherm Cookware is heated, steam is produced inside by the food that is cooking. The unique convex lid creates a convection effect that bastes the food in its own moisture as it cooks. In addition, the condensation of steam is collected in the groove between the casserole and the lid forming a seal and preventing heat loss. Oxygen can't get in, so vitamins are preserved and the food keeps its bright, natural colours.
Instructions for waterless cooking
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