Ovenproof describes cookware, dishes, and materials that can withstand oven temperatures without damage, warping, melting, or releasing harmful substances. Glass, ceramic, cast iron, and stainless steel are inherently ovenproof, while plastics, thin melamine, and wood are not; handles, lids, and non-stick coatings determine the maximum safe temperature of composite items. Manufacturers state limits, and exceeding them risks cracked dishes, degraded coatings, or fires. The term also appears in food contexts, such as ovenproof packaging films for ready meals and ovenable trays that go from freezer to oven. A practical caution: “ovenproof” does not mean indestructible, since thermal shock from plunging a hot dish into cold water can shatter even borosilicate glass. Checking the base stamp or product specification before first use avoids expensive mistakes.