Can You Put Cold Pyrex In The Oven? [Issues & Solved]

We generally hear that pyrex is one of the best heat-resistant glass that can be put in the oven. You must be wondering if you can put cold pyrex in the oven or not. 


Today, I would like to talk about the pyrex and oven as many people are interested to know whether you can put cold pyrex in the oven or not.

This article will discuss what you should do if you want to put challenging Pyrex glasses inside the range. Safety is the most important thing. So before you put anything in the oven, you should know well what you can and can not place. 

Many people might think you can put pyrex in the oven, but why not the cold one, right?

If you put cold pyrex in the oven, it will cause crackings due to a sudden change of temperature. 

Can you Put Cold Pyrex in the Oven? 

It would be a great idea to allow the cold pyrex to warm it. This method will ensure that the pyrex won’t suffer from thermal shock and break when the temperature rises.

Before putting it in the oven, make sure to wait one hour after taking out the pyrex glass from the fridge. Room temperature pyrex glass is the best to keep in the range. 

Can you Put a Cold Pyrex pan in a Preheated Oven? 

Yes, you can put a cold pyrex pan in a preheated oven. It is good to put the pyrex glass in the cold oven where the heat is not applied. The most excellent way to put a cold pyrex pan in a preheated oven is to put the pyrex dish in an oven on which the temperature is not applied and heat them together.

It would help if you did not put the pyrex glass in the preheated oven because it may cause shattering or cracking on the glass. 

Why Does a Pyrex Dish Explode in the Oven? 

Why Does a Pyrex Dish Explode in the Oven? 

When you apply excess heat to a pyrex dish, different parts of the pyrex dish expand due to high temperatures, which causes stretching on the body of the pyrex dish. The structure of the pyrex dish may alter if the stress is too much, and it will also cause a shattering effect. That’s why a pyrex dish exploded in the oven. 

How to Prevent Pyrex from Exploding? 

If we apply more heat than the pyrex glass can tolerate, it may cause crackings and shatterings. Explosions can cause serious problems. It is said that pyrex explosions are pretty standard. Therefore, it is essential to know how to prevent pyrex from exploding. 

  • You should use glass cookware on the stovetop if it needs to be applied high heat than usual
  • It would be a great idea to preheat the oven before putting the glassware in it. It will help you to prevent a pyrex dish from exploding.
  • If you want to avoid explosion from the pyrex dish, you should not put frozen food straightly without deicing the food items you want to keep in the oven. 

Will Pyrex Crack from Cold to Hot? 

Yes, pyrex may crack from cold to hot. If the temperature changes suddenly from cold to hot, the pyrex may shatter or crack. Changing the temperature from cold to hot is known as thermal shock. It can break when this process happens. 

Frequently Asked Questions: 

Q. Can you put cold pyrex in the microwave? 

No, you can not put cold pyrex in the microwave. The materials used to make pyrex items are not designed to resist sudden temperature changes. And it causes vibration in the internal parts of the glasses and crackings to occur due to the stress of the heat. If the pyrex is at room temperature, you can put them in the oven anytime. 

Q. Can pyrex Go in a 400-Degree Oven?

Yes, pyrex can go in a 400 degrees Fahrenheit oven. It is used for baking. But it can not tolerate a temperature over 425 degrees Fahrenheit. 


Pyrex glasses are one of the best glass cookware put in the oven. And these types of glasses can not act as thermal shock. If you want to keep safe from explosions, gaining basic knowledge about the cooking appliances would be helpful.

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