Can You Microwave Mason Jars? [Updated 2023]

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If you wondering to know that “can you microwave Mason jars”? Then you are at the right post. Basically, the newer jars have microwave-safe labels on them. But many mason jars are not microwavable and you should remember that glass mason jars are non-reactive but still become too hot.

In this way, you should not save anything that needs long periods of microwave heating in mason jars. Always Try to Use mason jars for quick-heat items that only require a few minutes to heat.

However, many people thought that it’s perfectly safe to heat Mason jars in the conventional or microwave oven, but you should not do this because it’s not a design flaw. There are more important things to learn.

What is a Mason jar?

As we all know, Mason jars are becoming as popular as coffee mug replacements. They might bell and cool-looking. John Landis Mason invented the Mason jar in 1858 and people used them for storage of food and beverage.

Microwave Mason Jars

Basically, Mason jars are made of glass that is not tempered glass so it is not capable of withstanding high heat. In simple words, Mason jars are not able to be cooked or baked. That’s the reason you probably shouldn’t microwave them, either.

If you use tempered glass to high-heat them there is also crucial for your safety. Due to this high heat, the Mason jar can break, and it can easily break into pieces. You should not put them in high heat.

Different types of Mason jar

There are many brands in Mason jars, but the most famous is Ball. If you want to contact different manufacturers to check if any use tempered glass, it’s possible that you could try your luck out.

However, most companies designed mason jars with non-tempered glass. Mason jars can be found in different types of screw-top metal lids. You can buy a wide-mouth design or a narrower neck as you want.

Can you microwave mason jars? It is safe or not?

Generally speaking, the easiest way to know if this jar is microwaveable or not or if a glass jar or other glass item is microwavable,  is to take a glance at a label on the bottom that mentioned “microwave safe.”

If you read that this Mason jar is made to handle high temperatures then it is also microwaveable. Otherwise, you can try the rule of thumb for glass cookware and thicker glass bowls by testing them to put them in the microwave for a minute.

Well, if the Mason jar is thin then we will not suggest you do the microwave test and you should never take the risk because it can shatter inside your microwave. So don’t put a thin glass jar for testing.

And one thing to remember is that, if the label says it is microwave safe then it’s best not to use these mason jars for cooking or reheating. Also, never try to put metal rings in your microwave, it might also be risky. Always try to use the mason jars for storage and canning.

Safety Tips

If you are a lover of these Mason jars? So, here are some safety tips for you while handling them in extreme temperature situations.

Microwave Mason Jars
  • First of all, always remember that when canning, never try to transfer Mason jars from hot water to a cold or wet counter. You just need to Place them on a towel to cool them before transferring them to the fridge.
  • If you are going to use a Mason jar as your coffee or tea thermos, then it will be helpful as the glass will be just about as hot as your beverage.
  • Even though they’re also freezable, Mason jars can breakage at frigid temperatures. If you are putting more jars together then you can Place some fabric around them so that they’re protected from clinking against other things in the freezer.


So that’s all you need to know about “can you microwave mason jars”? Basically, it is better to use these Mason jars for the store and if you want to microwave it then check it on the label. However, you cannot cook the Mason jar at temperature. Otherwise, it can break easily inside the microwave. So safety must be your first priority. We have mentioned everything in detail. We hope so, this article will help you a lot!

Sania Imtiaz

Hi, My name is Sania Imtiaz and I’m from Pakistan. I’m a housewife. And I Love cooking. And I’m a believer in making life peacefully with FOOD. I’m doing cocking from the last 10 years and I’m sharing all my knowledge related to cooking on I’m sharing all my experience on this site related to cooking products.

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