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Can Glass Go In The Oven? Here Are The Facts

Can Glass Go In The Oven

With the rise in the popularity of glassware, you may hear the unfortunate accidents of glass shattering due to the delicacy of the material. Though glass is toxins-free, people often use it for cooking and reheating food. But can glass go in the oven? Depending on the type of glass, if it’s tempered glass and manufactured as oven-safe, it can easily withstand high temperatures. However, not all glassware can go in the oven.

Before putting glass in the oven, ensure it is tempered and oven-safe; otherwise, it will shatter or break into several pieces to create a huge mess. But how will you know if the glass is oven-safe? In this article, we have elaborated on glassware and its safe usage to cook healthy meals in the oven without cracking or breaking. Read on to learn more.

Can Glass Go In The Oven? 

Considering the precautionary measures, yes, glass can go in the oven to heat and reheat food. Compared to other cookware, glassware has several benefits. However, handling it is the first step in using it correctly. 

Glass is highly resistant to heat as it is created over 3090 degrees. The oven temperature can go up to 500 to 550 degrees which isn’t a problem for glass. Then why some glass break in the oven?

How to Know If Glass Is Oven Safe

The possible reason is sudden temperature fluctuation leading to thermal shock from room temperature or cold to hot in the oven. This temperature change excites the glass molecules to build stress and lead to cracks.

If you have tempered glass, there is no need to worry due to its thicker, sturdy, and heavier structure. But tempered glass can sometimes break if you do not follow the proper instructions. Therefore, you must know if your glass type is oven safe or not.

How to Know If Glass Is Oven Safe?

Most glassware with lids and dishes offered by Pyrex or Anchor Hocking casserole dishes are highly heat resistant. But it doesn’t mean they all are safe in the oven. 

How to Know If Glass Is Oven Safe

Here are some signs and ways to find out if your glass is safe to use in the oven.

Look For The Symbol

The oven-safe symbol at the bottom of the pan is the easy and most reliable way to know if glass can go in the oven. This symbol is also present below the baking dish. You can find it out by checking the sign.

Do Some Online Research

If you already have a glassware set and are unsure if it’s oven safe, you can simply search for the manufacturing company on Google. You can use it without worrying if the company has provided information about the particular glass.

Use User Guide or Manual

Your newly bought glassware packaging will include an instruction guide or user manual. You can read it and learn if your glassware is oven-safe.

Find Out The Type of Glass

The type of glass plays a major role in deciding whether it is safe. Glasses made of borosilicate or tempered are oven safe. You will also see the symbol on cookware.

But non-tempered or normal glass can easily break even at low temperatures in the oven.

What Temperature Can Glass Go In The Oven?

Oven-safe glass usually tolerates heat up to 600 degrees Fahrenheit and can remain safe if you keep the temperature below the limited range. Foods in the oven require a maximum of 450 to 500 degrees, which means your glassware will not be affected by temperature.

  • Pyrex glass can withstand 350 to 425 degrees
  • Borosilicate can tolerate 330 degrees 
  • Tempered glass will break if you exceed 470 degrees.

Can Glass Go In Oven At 180?

If you do not have tempered glass, rather there is thin glass, you can see its temperature limit in the user manual. Usually, thin glass can tolerate heat up to 150 to 200 degrees Fahrenheit. However, the thicker glass will not break even at hotter temperatures.

Can Glass Go In The Oven At 350 Degrees?

If the limited range of your glassware is lesser, it won’t bear high temperatures. For example, some glass is oven-safe at 350 degrees. If you cross this range, the glass will break. However, you can prevent it by keeping the temperature within limits.

How to Use Glassware Safely In The Oven?

Follow these guidelines to use glassware in the oven without breaking or cracking safely.

How to Use Glassware Safely In The Oven

  • Keep your glass at room temperature before you put it in the oven.
  • Put the glass in the oven, and start preheating the glass and oven together.
  • Once preheated, place food in the dish and let it bake at a certain temperature for the required time.
  • After baking, remove the dish to cool it down to room temperature. 
  • Do not wash the hot dish with cold water, as it will break the glass.
  • If you want to put the dish in the fridge, ensure it is at room temperature.
  • Also, avoid putting dishes in the oven directly from the refrigerator.
  • If preparing dry foods in a glass, add some liquid to the food.

Safety Tips to Consider When Using Glass In The Oven

Here are some additional tips for using glass in the oven.

Avoid Thermal Shock

  • Avoid any sudden temperature change in glassware from hot to cold or vice versa.
  • Glass doesn’t tolerate high-temperature changes and shatters into pieces. 
  • Never put glassware direct from the fridge into the preheated oven. Also, do not place a hot glass dish on the cool countertop.

Use Tempered Glass

  • Use glass only if it is oven safe, and avoid putting any other glass in it.
  • Make sure it is tempered glass. Using a drinking glass in the oven is unsafe.
  • You will see the label oven safe on your tempered glassware. 

Look For Cracks & Scratches In the Glass

  • Look carefully for cracks or weak points on the glass that can break at oven temperature.
  • Do not stack glass dishes on top of each other, as this will also cause cracks.

Do Not Exceed the Temperature Limit

  • If you are unaware of the temperature limit of the glass, visit the manufacturer’s website to check the limit.
  • The limit usually lies between 300 and 500 degrees, and staying within these temperatures is better.



Can Glass Go In The Microwave?

Yes, glass can go in the microwave if labeled as microwave-safe. The label will clarify that glass is heat resistant and can withstand high temperatures. 

Is Pyrex Glass Oven Safe?

Yes, Pyrex glass is oven-safe and can easily withstand temperatures up to 600 degrees. These are strongly built glassware resistant to heat.

Final Thoughts

So, can glass go in the oven? The answer is simple, yes. However, some types of glass are not safe to go in the oven and will break even after one use. But many glassware mentioned as oven-safe or made with tempered glass is useful for baking in the oven.

Glass is the ideal cookware for storing, cooking, and reheating your favorite foods, but it can possibly break if you neglect careful measures. We hope the guidelines will help you bake safely in the oven without damaging your glassware.

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