Can You Put Cold Glass In The Oven?

Can you put cold glass in the oven? Most people think otherwise but you can safely put a cold glass dish in the oven. You do have to take some precautions though which we are going to explain below.

Most people don’t recommend putting cold glass in the oven. Most often, the oven is preheated to a certain temperature depending on the kind of dish you are making. Therefore, the sudden change in the temperature can shatter the glass. However, some situations allow you to put cold containers such as glass and ceramics in hot ovens.

Is it Safe to Put Cold Glass in the Oven?

Yes, putting cold glass in the oven is perfectly safe, despite the popular belief that it isn’t. Many recipes require adding a cold glass dish to the oven to prevent bubbles or cracks, which indicates that it’s a common practice.

To guarantee that your dish comes out of the oven unharmed, remember to take a few precautions.

  • First and foremost, ensure that the glass is suitable for use in an oven. While some glasses like Pyrex are built to tolerate high temperatures, others are not.
  • Secondly, gradually raise the oven’s temperature, allowing the glass ample time to acclimate to the heat.
  • Lastly, prevent exposing the glass to drastic temperature shifts, such as introducing a hot dish to a cold oven or the reverse.

The following are some other factors to keep in mind if you wish to put cold items in the oven.

Take the glass out of the fridge and place it on the counter for at least 30 minutes before putting it in the oven.

Always use oven-safe glass such as tempered glass. It will prevent the glass to shatter due to heat and send dangerous and jagged pieces of glass flying in the air.

To enable your cold tempered glass to adjust to the warm oven, you can preheat it by putting it in the oven as it warms up. Doing so will allow the cold glass to adapt to the rising temperature of the oven gradually.

Another useful tip is to let the cold glass sit at room temperature on the counter before placing it in the preheated oven. Once you no longer feel that the glass is cold to the touch, it’s safe to add it to the hot oven.

Will Glass Break in the Oven?

If your glassware is not tempered and the temperature change is severe, the cold glass may shatter in the oven. Even if it is tempered, allowing it to reach room temperature first will help prevent thermal shock caused by the drastic change in temperature, which can result in the glass breaking.


If you prefer using clear glass cookware for all of your cooking and baking needs, it’s essential to understand the factors that can cause the glass to break, as hot and cold glass may appear identical.

Can You Put a Glass Bowl in the Oven?

If a glass bowl lacks the label “oven-safe” on its underside, it shouldn’t be put in an oven. Even an invisible, minor chip can cause a glass bowl to break when it’s exposed to heat.

The most prudent recommendation is to avoid putting a glass bowl in the oven, as the risk is not worth it. If the glass shatters, you’ll not only have to discard your meal but also clean your oven thoroughly since tiny shards of glass will be scattered all over.

Can I Put a Glass Plate in the Oven?

If a glass plate is labeled safe for use in the oven, it’s safe to place it in the oven. However, many glass plates have decorative trims that can cause the plate to break if exposed to excessive heat. The response to this question is similar to our answer to “Can You Put Cold Glass in the Oven?”

What is the Maximum Temperature Glass can Withstand in the Oven?

Several glass dishes can endure oven temperatures of up to 450°F. Nonetheless, it’s advisable to review the manufacturer’s suggestions for your specific brand of glass bakeware. If your glass item lacks an oven-safe label, putting it in the oven is not recommended.

However, stainless steel is safe for use in the oven, so you can confidently place stainless steel pots and pans in the oven.

Can Glass Break from Cold Temperatures?

Glass can indeed break due to a temperature shock caused by extreme differences in temperature. Placing the hot glass on a cold countertop can lead to the glass breaking. To cool a glass item down quickly, it is advisable to place it on an insulator such as a potholder or dish towel and allow it to cool slowly. There is no effective method to rapidly cool hot glass.

What to Do Before Putting Glass in the Oven?

  • Research if your glassware brand is oven-safe to ensure safety when using it in the oven. Substituting a roasting pan with oven-safe glassware is possible.
  • Always remember to check if the glassware you are using has any decorative trimmings and be aware of them. If the trimmings get too hot, there is a good chance that they will bubble up or cause the entire dish to break.
  • Make sure to preheat the oven before putting your dish inside.
  • Placing a cold glass dish in a hot oven will result in shattering due to the temperature difference, so avoid doing so.

What is Heat Resistant Glass Called?

Heat-resistant glass typically consists of materials such as borosilicate glass, tempered soda-lime glass, and glass-ceramic. Pyrex, among other brands, produces a type of heat-resistant borosilicate glass. Tempered glass is also a type of heat-resistant glass.

These glasses are designed to withstand high-temperature differentials without shattering. However, it is important to note that even heat-resistant glass such as Borosil, Duran, Pyrex, Supertek, Suprax, Simax, and Bellco, can fail under certain conditions.

How Do I Know if A Glass is Oven Safe?

If a glass bakeware item does not indicate being oven-safe, it is not safe to assume that it can be used in the oven. Glass bakeware is only considered oven-safe if it is marked as such on the bottom or side, including the maximum temperature it can withstand.

As long as the maximum temperature indicated is not exceeded, Pyrex glass bakeware and cookware are always safe to use in the oven.

The oven-safe maximum temperature for most other brands of glass bakeware is 350 degrees Fahrenheit.

Always monitor any brand of glass bakeware when it is in the oven because even minor changes in oven temperature can cause the glass to break. If you are uncertain whether a specific dish is oven-safe, it is best to exercise caution and use a different dish. With careful attention, glass bakeware can be safely used to prepare delicious meals.

Are Mason Jars Oven-Safe?

Putting a mason jar in the oven is not recommended as it is not designed for use as cookware. Despite what some people on Pinterest suggest, cooking in a mason jar is not safe. Mason jars are made of annealed glass, not tempered glass, which means they are not heat-resistant and can break easily in the oven.

See more: Best Oven For Baking Cakes And Cookies

Manufacturers ensure that glass cookware is made from tempered glass. Tempered glass can withstand temperature differences better than annealed glass and will break into larger chunks that are not as sharp, while annealed glass will shatter into many tiny sharp pieces.

Can You Put Cold Ceramic in the Oven?

Ceramic can be put in the oven when it’s cold. It’s a durable material that can withstand sudden temperature changes without cracking or breaking. However, it’s crucial to remember that not all ceramic dishes are equal. Those made with a thin layer of clay or unglazed decorations are more prone to breaking when exposed to sudden temperature changes.

Frequently Asked Questions

How do you warm up the cold glass without breaking it?

To warm up the glass, put it in a pot of very hot water, making sure the water produces steam but does not reach a temperature that could cause the glass to break. Leave the glass to soak in the hot water for a few minutes, then remove it and dry it off. The heat from the water will assist in warming up the glass.

Can you put a cold glass in the microwave?

You can put a cold glass in the microwave, and the microwaves will transfer heat to both the glass and the liquid inside. However, it is not recommended to do so as it can cause the glass to break. The safest way to heat a cold drink is by using a thermal mug specifically designed for this purpose.

Can you put a glass baking dish from the fridge in the oven?

It is generally not recommended to put a cold glass baking dish directly from the fridge into a hot oven, as the sudden change in temperature can cause the dish to shatter. It is best to let the dish come to room temperature first before placing it in the oven. Alternatively, you can also preheat the oven with the empty baking dish inside to avoid a sudden temperature shock.

Can you put cold glass Pyrex in the oven?

Regularly placing Pyrex in the microwave can weaken it over time, but it is possible to do so. Before doing so, it is important to ensure that the Pyrex is oven-safe.

Final Thoughts

When placing cold glass in a hot oven, it’s crucial to proceed slowly to avoid thermal stress, which can lead to breakage. Additionally, one should exercise caution when using metal utensils with glass, as they can also contribute to breakage.

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