Are Glass Lids Oven Safe?

April 22, 2022
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Many Glass Lids are Oven Safe - Many Aren't - Here's How to Tell

Unfortunately, there's no quick answer that solves the question for each and every glass lid. Figuring out which of the old glassware items stored away in your kitchen is oven safe can be tricky - especially when it comes to glass items.

While most glass lids, dishes, and other items are oven safe, it can be nerve-wracking to use them if you are not sure, especially if it’s a priceless family heirloom like your great grandmother’s Le Creuset dutch oven lid. For Le Creuset, the knob on some of their dutch oven lids is the constraining factor and can't withstand extremely high oven temperatures.

When in doubt, it is always best to approach to assume that the glass lid isn’t oven safe unless you’re absolutely certain. Even when glassware is believed to be oven safe, use in an oven with caution at the lowest temperatures possible.

There are some tell-tale signs of glass lids that are not oven-safe. These often include items that contain other materials like plastic, wood, rubber, paper, or other flammable items.

Additionally, there may be symbols on the bottom of your glassware lid or dish that may indicate whether it is tempered glass. Tempered glass items are always safe for the oven, but the non-tempered glass may shatter when exposed to high temperatures.

Which Lids Cannot Go Into An Oven?

Beginner chefs, cooks, or those just reheating day-old lasagna may not know which lids and glassware are safe for an oven's intense heat. The first step when deciding if your glass lids are oven-safe is to examine them for flammable, meltable, and other materials.

Glass has been used for beads and containers since 1450 BC, and humans have used glass for cooking for millennia. As modern technology advances, so does our use of materials that may not be safe for an oven. Examine all your cookware for the following materials, and do not use them in your oven if they include these materials.

Glassware With Rubber

Many beginner chefs or young cooks may not think much of using a glass lid with a rubber knob on the top. However, rubber does not do well in an oven. Sometimes, rubber items may get distorted, discolored, or warp into a different shape.

Photo of a class lid with rubber gripsLids that work great on the stovetop often times can’t handle the heat of the oven

When exposed to extreme heat, rubber can melt and change shape, only to harden again when cooled off. While this may not cause significant damage, it can ruin a perfect glassware lid. Instead, consider using an oven-safe, all-glass, or silicone lid. Silicone is a type of rubber that offers more versatility and elasticity. These attributes make silicone ideal for oven use.

Glassware With Plastic

Plastic is never safe for an oven. A plastic lid can create a bigger problem for your appliances, but it will also ruin your food and waste your time. Whether it is a plastic lid or cookware with plastic handles, it has a relatively low melting point. Plastic will begin melting at around 168 degrees Fahrenheit (76 degrees Celsius), the coolest temperature possible for many standard ovens.

Photo of glass lid with a plastic knob

Lids with plastic are NOT oven safe

As the plastic lid or container melts in your oven, your food may spill onto the oven floor, causing a fire, excess smoke, and other damage.

Anything Made With Paper

Paper is sometimes used in an oven for specific and cautious circumstances. For example, some arts and crafts projects for making an old-timey pirate paper call for baking paper at a low temperature, often with the oven door ajar.

Additionally, parchment paper can line baking sheets and dishes with great success.

However, typical paper can burn quickly and should only be used in an oven with the utmost caution and adult supervision. Fortunately, not many glassware or cookware items use paper. Paper may not be a common concern for many beginning chefs using oven-safe glass lids.

Glassware With Wood

Some wood items can be oven-safe. However, a home chef must be extra cautious to ensure that the glassware lid containing wood is designated as oven-safe. Using any lid or item containing wood in an oven can lead to fire, excess smoke, and damage to your home.

Consider looking up the company information to see if the item is oven-safe, although it contains wood.

The Best Brands for Oven Safe Glass

Several brands offer oven-safe glassware for low costs and great value. Some of the best brands offer glass lids without extra materials, great designs, and an appealing form. Using a glass lid from one of these companies can provide you with a smooth and easy baking experience without fretting over damage, destruction, or smoke.

While most glassware items are safe for oven use, these brands offer products proven to be of the utmost value.

Anchor Hocking

Anchor Hocking offers quality items that are free of heavy metals and BPA. Additionally, most of the glassware lids from Anchor Hocking are oven safe and dishwasher safe. Always refer to the care instructions included with the product upon purchase.

Pyrex Glassware

Pyrex lids and glassware are flexible and diverse. These lids double as a cover for leftovers, but they are also oven safe and offer safety and security while cooking.

While a glass Pyrex lid and pyrex dish containing the food are designed to be oven safe, you need to be careful and follow the manufacturer instructions for Pyrex. Sudden temperature changes can damage Pyrex - so be careful.

Pyrex glass has been around for over 100 years and has offered families, homes, and gatherings the best baking dishes for everyone coming together.


Items from Glasslock are BPA-free, oven-safe, and non-toxic. These items are also incredibly versatile and are made of natural materials that make them recyclable and beneficial to the environment.

The varying styles and flexibility make these containers, dishes, and glass lids the best for oven-safe baking.


Calphalon cookware itself is oven safe up to a minimum of 400 degrees, with many Calphalon products being oven safe up to 500 degrees. Note that you'll have to be careful before putting a Calphalon pan or glass lid into the oven when broiling. Many of their products aren't safe for the broiler. Check out the suitable temperatures for Calphalon products on their official website for additional info.

Calphalon glass lids are oven safe up to 450 degrees according to Calphalon.

The Benefits of Using Glass Ovenware

There are several reasons why professional and home chefs prefer using glass ovenware. Aside from the sleek designs, they also offer the following ideal benefits:

  • Better transparency.
  • Durability to high temperature.
  • No reactions to acidic foods.
  • No shedding (like cast-iron and nonstick pans)
  • Better heat retention than most metal or stainless steel dishes.

Using glassware in your oven can help you determine when dishes are done better, as you will be better able to see the bottom of the food. They will also remove the ability of cast-iron shedding from your food and offer a more thorough distribution of heat than other baking dishes.

Most Glass Lids Are Oven Safe

Photo of a glass lid with a stainless steel knob

Many glass lids are oven safe

Many glass lids are oven safe and can provide you with a smooth and easy baking experience. However, it can be hard to tell if the baking dishes, glass lids, and other glassware hiding in your cabinets for the past few years are oven safe - especially if they were gifts or hand-me-downs.

Examine your glassware for any rubber, paper, wood, or plastic components before using them. When in doubt, consider buying a new set from one of the reputable brands listed above.

Finding the perfect glass lid for baking your favorite dishes can be fun and exciting and offer you the effortless experience you deserve.

Frank Salvatore

Hey there - I'm Frank Salvatore. I created this site as a comprehensive kitchen resource. You'll find everything you need to know about everything in your kitchen. From appliances to utensils and layout - it is covered on this site!

About Me
Frank Salvatore
I created this site as a comprehensive kitchen resource. You'll find everything you need to know about everything in your kitchen. From appliances to utensils and layout - it is covered on this site!
Learn More About Me
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