Can Glass Go in the Oven [Detailed Guide]

Prepping a dish on a Sunday in a casserole pan to be cooked later in the week can be a great time-saver.

However, if you take a frozen casserole in a glass container straight from the freezer into the oven, it can actually shatter on you!

That sounds scary, but there are steps you can take to ensure your oven-safe dishware won’t break during cooking.

Glass can go in the oven as long as the dish is made of oven-safe glass. Check the label on the box or a symbol on the bottom of the pan to make sure it is oven-safe before using it. You can put oven-safe glass cookware in at temperatures from 180° F to 425° F. But don’t put glass cookware that’s cold straight into the oven, let it sit at room temperature for a bit first.

Also, make sure the glass cookware has no scratches or cracks. These can make your dishware break or shatter in the oven.

Read more to learn what glass can go in the oven and at what temperatures!

How Do You Know if a Glass is Oven-Safe

To know if a glass cooking dish is oven-safe, first look at the box that it came in. There should be a list of temperatures that the dish is safe at somewhere on the packaging.

If you have already thrown the box away, then look at the bottom of the dish itself.

The symbol may vary slightly depending on what brand you purchase, but oven-safe symbols typically look like a little oven with the degree listed that the pan can withstand heat.

You may think it’s not a big deal to just put a dish in the oven. However, if there is no symbol, you may put the dish in at a temperature that is too high for it. This can cause the glass dish to shatter in your oven.

Additionally, there are things to check for glass dish safety even if the glass is oven-safe.

If the dish has a crack, chip, or large scratch in it, this means the glass is getting weaker, so it will break soon if exposed to high heat.

If your glass dish has a crack, chip, or large scratch in it, do not put it in the oven. You can still use it as a serving dish, but if you put it in a warm oven the dish may break or even shatter.

If you don’t want to worry about whether your glass is safe to go in the oven or not, there are specific types of oven-safe glass cookware.

Borosilicate glass and tempered glass were all created for oven use.

Borosilicate glass contains boron trioxide, which basically means it won’t crack or break under big temperature changes like other types of glass can.

Tempered glass has been heat-treated so that it’s more durable and can withstand higher temperatures.

There are certain types of glass that you cannot put in the oven. Everyday dishware like plates, bowls, or drinkware cannot go in the oven.

And to add, never use glassware on the stovetop part of your oven or in the broiler. This type of heat is not controlled the same way an oven is, and the glass can easily shatter.

Can You Put Cold Glass in the Oven

In general, you should not put cold glass in the oven. Glass does not withstand temperature change well because of thermal shock.

Thermal shock is when glass breaks due to a rapid temperature change across its surface. So, even if a glass is oven safe, it might shatter if put in a hot oven.

If you put something like a leftover lasagna straight into your fridge without taking it out of the glass container you cooked it in, let it sit on your counter for half an hour or so before putting it in the oven.

This way, the container has a chance to get to room temp before going in.

However, any food that has to go in the fridge can spoil if left on the counter for too long. Do not leave any food out for longer than two hours.

If you live somewhere where the temperature is quite cold, and you’re worried about your dish breaking just from being at room temp, you can place your dish in the oven right when you turn your oven on to pre-heat.

This way, the dish warms up slowly with your oven and won’t break.

It is okay to put glass into the oven if the dish is already hot. However, thermal shock still applies, so do not put a hot glass directly into your fridge.

Let it sit out for a bit at room temperature, and then put it in your fridge to avoid breakage.

And with most oven-safe dishes, as long as they do not have any metal trim, you can use them in the microwave as well.

The one exception to this rule is if the manufacturer states it is safe to put a frozen dish in the oven.

For example, with Ikea’s borosilicate glass cookware, their website states you can put the dish directly from the freezer into the oven.

Can Glass Go in the Oven at 180

Since 180°F is such a low temperature, oven-safe glass will have no issues in the oven.

Because of thermal shock, any significant temperature change makes it more likely your glass will break. So if your pan is at room temperature, there will be no problems cooking at 180°F.

Can Glass Go in the Oven at 275

It’s totally fine to cook with oven-safe glass can at 275°F because it is well within oven-safe cookware’s temperature range. At 275°F, you can slowly cook meat over a couple of hours.

A glass dish is excellent for this since you’ll want to check periodically how your meat is cooking.

I know when I cook carnitas, you want to cook it low and slow for an extended period of time.

However, there is a lot of fat in pork, so you want to use a big dish that collects all of the drippings. A large glass pan is perfect for this.

Can Glass Go in the Oven at 350

Yes, oven-safe glass can go in the oven at 350°F but this is in the higher section of the tempered glass safe temperature range.

You do not want to put a cold dish straight into the oven at 350°F. Always be sure to let any cold dishes sit out for 30 minutes to an hour at room temperature before putting them in the oven.

Can Glass Go in the Oven at 375

It’s okay to put oven-safe glass can go in the oven at 375°F because it’s similar to cooking at 350, but your food will cook a little faster.

When you’re cooking at higher temperatures, make sure there is liquid in your pan before it starts cooking.

This will help prevent thermal shock. Dinners like casseroles are great for glass dishes because they usually have liquid in them.

Can Glass Go in the Oven at 400

You can cook with oven-safe glass in your oven at 400°F because both tempered glass and borosilicate glass is made to be used at this temperature.

However, this is nearing the top of some oven-safe glass’s heat range.

Can Glass Go in the Oven at 425

You can put oven-safe glass can go in the oven at 425°F, but this is typically the highest degree that certain types of oven-safe glass can go in the oven.

For example, tempered glass generally cannot go in ovens with temperatures higher than 425°F.

To avoid thermal shock at this temperature, put the glass in the oven while it heats up. This way, the glass will be at the same temperature as the oven.

Do not put any cold liquids into a hot glass container, or it might break.

When pre-heating your dish, put all of your ingredients out on the counter for half an hour or so before you start cooking.

Also, handle the dish carefully when preparing so that you don’t burn yourself.

Can Glass Go in the Oven at 450

In general, glass cannot go in the oven at 450°F. You may be tempted to put a glass dish in at 450 because it’s so close to 425, but do not do this.

Glass in Oven

You risk breaking your glass dish and injuring yourself by trying to clean broken glass and messy food out of your oven.

If you do this and the glass breaks, do not try to clean your oven right away. Turn the oven off and if possible, leave the oven door open to let the heat out faster.

Do not leave the door open if kids or pets are around.

Then wipe out the food and glass from the oven with a thick towel.

The one exception is borosilicate glassware. Some borosilicate glass cookware can withstand temperatures of over 1000°F!

Can Glass Go in the Oven at 500

No, glass cannot go in the oven at 500°F. This temperature is too high for tempered glass.

If you need to do some cooking at 500°F, look for cookware with ceramic non-stick coatings, enameled cookware, cast-iron pans, or All-Clad hard-anodized pans.

Like with 450°F, the exception to the rule is certain borosilicate glass cookware that is made to go up to 500°F.

The Temperature of Your OvenCan Oven-Safe Glass Go in?
180° FYes
275° FYes
350° FYes
375° FYes
400° FYes
425° FYes
450° FNo (with the exception of some borosilicate cookware)
500° FNo (with the exception of some borosilicate cookware)

Can Pyrex Go in the Oven

Pyrex was created in 1915 because it was able to withstand thermal shock. If you are looking for oven-safe glassware, Pyrex is a reputable brand.

Pyrex Glass

Pyrex can go in an oven with a temperature up to 425°F, and there are tons of types of pans and dishes available

While Pyrex used to be made of borosilicate glass when it first started, now it’s made with tempered glass. Tempered glass has been heat-treated to make it more durable.

When glass is tempered, the exterior is cooled at a faster rate than the interior.

As the inside cools, it pulls at the exterior, making it more resistant to breaking if dropped and thermal shock.

However, Pyrex is still glass and can shatter if you put it directly in the oven when it’s cold.

Like with all oven-safe glass, take it out of the fridge for half an hour or so before putting it in the oven.

Also, Pyrex warns against putting anything cold into your hot pan. Let your pan cool in a warm place, like on top of your oven, for several minutes after taking it out before digging in.

This ensures that your potentially cold serving spoon will not shatter the dish.

Can Ikea Glass Ovenware Go in the Oven

Ikea glass ovenware is a great option and reasonably priced. It can go in the oven, and it can even withstand rapid temperature changes.

If for some reason the cookware does break, it will break into larger pieces so that it is easier to clean up.

While their website doesn’t specify what type of glass this is, there is no cadmium or lead added to the glass, so this cookware is safe for all your family and friends.

Can Amazon Basics Glass Cookware Go in the Oven

Amazon Basics sells borosilicate glass cookware that can go in the oven with temperatures up to 1076°F.

This is excellent cookware if you know you are going to be cooking with high heat and don’t want to worry about the glass exploding.

This cookware is dishwasher safe and claims to be able to withstand extensive temperature changes without cracking.

You can pay a little extra for dishes with lids or less for ones without if you don’t need that.

This cookware is BPA-free as well, so the food you prepare in Amazon Basics glassware is safe for your children to consume.

Final Considerations

Glass can go in the oven, but make sure it is oven-safe. Dishware like plates, bowls, or glasses cannot go in the oven.

Dishes made for the oven, like Pyrex, are perfectly safe as long as you do not put them in the oven when they are cold.

If you want to use a baking dish for the oven but aren’t sure if you can, check the bottom.

Most dishes have a little icon that says the heat the pan can withstand in an oven. If your dish doesn’t have this on the bottom, do not use it.

Glass cookware works well in the oven, and as long as you follow all safety instructions, you should have no problems with breakage!

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