Can Pyrex Go in the Freezer

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Your freezer is supposed to be one of the easiest appliances to use in your kitchen.

Sure, you have to worry about presets with your oven and all manner of different settings with the coffee maker and toaster, but your freezer should be simple.

All you have to do is pop things in there and they remain nice and fresh and cold, right?

Well, if you have ever tried to put glass in there, you know that this is not entirely true. Try putting a glass in the freezer, and there’s a chance it could break.

You hardly want to lose a precious wine glass or deal with shards of glass all over your freezer. Nevertheless, you want to get these drinks chilled in a hurry, so what are you to do?

It’s here that Pyrex distinguishes itself as one of the premiere convenience cookware brands. Here’s why putting glass in the freezer may be problematic, but for Pyrex, it’s a piece of cake.

Why Glass Can Be a Problem

The issue with glass is twofold. First, it’s notoriously delicate, which means that it’s just easier to shatter, full stop.

There’s no denying that the delicate nature of glass adds to its elegance and charm, but it also means its frame is a lot easier to crack and shatter.

That brings us to the next point, which is that the temperatures and pressure in a freezer can be too much for glass cookware , especially if it’s filled with liquid. 

When liquids freeze, they expand, and when they do so in a small glass container, it can lead to shattering. Besides which, the cold temperatures themselves can easily shatter the glass.

​When it comes to comparing pyrex vs glass cookware Pyrex is far superior. ​​​

​Can Pyrex Go in the Freezer ?

With Pyrex, on the other hand, you can put your glasses and cookware in the freezer and – as long as you follow a few basic precautions – rest assured that they will not shatter.

That is because Pyrex is engineered with borosilicate glass, which is much stronger than the types of glass typically used in things such as wine glasses and glass jars. It is also able to handle far more extreme temperatures, meaning the freezer shouldn’t be too cold for it.

There are three things you’ll want to keep in mind when placing your Pyrex in the freezer, however.

First, make sure that any lids to any jars or other Pyrex receptacles you are using are on loosely, if at all.

Twisting them on to form a tight seal will trap expanding freezing water and air in there, which will cause pressure to build up and, thus, potentially lead to cracks and shattering.

Second, you never want to use glassware that is already cracked or otherwise damaged. This means its structural integrity has been compromised, and hot or cold temperatures can cause it to break.

Third, you want to make sure that you ease your Pyrex from one temperature situation to another.

Go right from the oven to the freezer and the fast and dramatic temperature shift could still be too much for your Pyrex, causing it to shatter.

As long as you follow these precautions, however, your Pyrex cookware should be perfectly safe for use in the freezer.