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5 things that should never be put in oven

5 things that should never be put in oven Illustrative photo (Freepik)
Author: Maria Kholina

Everyone loves baking in the oven. However, it's worth knowing that not all materials are oven-safe, according to Eating Well.


At high temperatures, plastic melts and releases toxic substances. Such utensils should not be placed in the oven, not even for preheating.

"It's best to use cookware explicitly labeled 'oven-safe," says dietitian Alex Lewis.

So, check the labels first before putting any cookware in the oven.

Cardboard, paper, or wax paper (not for baking)

These materials can easily catch fire in the oven. Only use special paper baking forms that are coated with a specific substance.

Use parchment paper or a silicone baking mat, as they can withstand high temperatures without melting, ensuring the safety of your home and food.


Glass is sensitive to rapid temperature changes (for example, removing a hot dish from the oven and immersing it in a sink filled with cold water), and it can explode or shatter due to "thermal shock."

Buy glass containers resistant to thermal shocks, follow the manufacturer's instructions for safe temperatures, and always leave the cookware at room temperature after baking.

Food residue

During cooking, food can drip onto the oven rack and other materials, getting stuck or leaving residues.

If you notice spilled food (or smell smoke) while cooking, carefully remove the dish from the oven, let the appliance cool, and then clean everything.

Too much food residue increases the risk of the oven catching fire.


This type of cookware, if it doesn't catch fire, will surely smolder, emitting an unpleasant odor. Be careful and do not place cookware with wooden handles or parts in the oven.