It depends on the plate. Only plates specifically labeled oven safe should go in, since a regular dinner plate can crack or shatter from the heat.
It's tempting to grab whatever plate is closest when you need to keep food warm in the oven or finish a dish under heat, but not every plate is built to handle it. Most everyday dinnerware is designed for serving, not for direct oven heat.
The difference comes down to the material and how the plate was manufactured, which is exactly what an oven-safe label is telling you.
Look at the bottom of the plate for a small icon, usually wavy lines or the words "oven safe," along with any maximum temperature listed. If there's no marking at all, treat it as not oven safe.
Sudden temperature changes crack even sturdy dishware. Never move a plate straight from the fridge into a hot oven, and let it cool gradually afterward instead of setting it on a cold or wet surface.
When in doubt, use a baking dish, sheet pan, or oven-safe glass dish instead of guessing with everyday plates.
Check the bottom of the plate before it goes anywhere near the oven; a wavy-line icon or explicit oven-safe label is the real answer, not the plate's thickness or how it looks. When there's no marking, reach for a baking dish instead.
No. Microwave-safe only means a material won't react to microwave energy at lower heat. Oven-safe means it can withstand sustained higher dry heat, and the two labels aren't interchangeable.
Many Corelle pieces are oven safe up to a specific temperature listed by the manufacturer, but not all patterns are rated the same, so check the specific product information first.
Most cracks happen from thermal shock, going from cold or room temperature straight into high heat, or from a plate that was never rated for oven use in the first place.
No. Paper plates can scorch, smoke, or catch fire at oven temperatures, even ones marketed as heavy duty. They're only rated for microwave or cold use.