Is CorningWare dishwasher safe?
Sometimes — the original CorningWare (Pyroceram) body is dishwasher safe, but the plastic lids and any metal trim or decals are not.
Quick facts
| Dishwasher safe? | Sometimes — Sometimes — with care |
|---|---|
| Category | Dinnerware |
| Source | CorningWare Care & Use ↗ |
| Last checked | 2026-07-28 |
Why
CorningWare is made of Pyroceram, a glass-ceramic material that is highly thermal shock resistant and non-porous. It can withstand dishwasher heat and alkaline detergents without warping, clouding, or etching. However, the plastic lids (typically polypropylene or Tritan) may warp or degrade over time due to high heat, and the silicone gaskets can lose their seal. Decals or painted designs on older pieces may peel or fade. CorningWare's official care instructions state that the glass-ceramic dishes are dishwasher safe, but lids should be hand washed. The specific failure modes for lids are warping and seal degradation; for decals, peeling. The body itself is unaffected by machine washing.
How do you wash CorningWare?
- Remove the plastic lid and silicone gasket from the CorningWare dish.
- Hand wash the lid and gasket in warm, soapy water with a soft sponge; rinse and dry thoroughly.
- Place the Pyroceram dish in the dishwasher, top rack only, away from the heating element.
- Use a mild detergent and avoid high-temperature or sanitize cycles.
- After the cycle, remove the dish promptly and allow it to air dry completely before storing.
- Reattach the gasket and lid only after all parts are fully dry.
What happens if you put CorningWare in the dishwasher?
If you wash the entire CorningWare set (including lid) in the dishwasher, the Pyroceram body will come out fine — no damage. However, the plastic lid may warp after a few cycles, especially if placed on the bottom rack near the heating element. The silicone gasket can become brittle or lose its seal, leading to poor fit and potential leaks. Decals or painted patterns may start to peel or fade after repeated washes. The damage is cosmetic for the decals but functional for the lid and gasket. After one wash, you likely won't notice issues; after many washes, the lid may not snap on securely, and the gasket may not seal properly, affecting microwave or oven use.
Frequently asked questions
- Can CorningWare go in the microwave?
- Yes, the Pyroceram body is microwave safe, but remove the plastic lid before microwaving unless the lid is specifically labeled microwave safe.
- Is CorningWare oven safe?
- Yes, original CorningWare is oven safe up to 500°F (260°C), but avoid broiling and do not use on stovetops or under a broiler.
- How do I remove stains from CorningWare?
- Soak the dish in a solution of baking soda and water or use a non-abrasive cleaner like Bar Keepers Friend. Avoid steel wool or harsh scrubbing pads.
- Can I put CorningWare in the freezer?
- Yes, the Pyroceram body is freezer safe, but allow it to come to room temperature before placing in a hot oven to avoid thermal shock.
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Last updated 2026-07-28. General guidance — always check your product’s care label. How we verify · Dishwasher care guides.