Can You Microwave Pyrex Lids?

The Pyrex brand has been known for its top-quality kitchenware. Since they tend to be of excellent quality, many have chosen to use Pyrex cookware when in their kitchen. While it may work well when using either the oven or stove, there is another appliance that many of us use in the kitchen. This is the microwave. Many of us use the microwave regularly. But, can Pyrex lids and kitchenware be used in the microwave?

Pyrex is safe to use in the microwave. Pyrex is sturdy and durable, which makes its kitchenware great for use in both conventional ovens as well as microwave ovens. You want to be careful using Pyrex in the microwave. Many consumers have reported the cookware cracking as well as exploding when in the microwave.

Continue reading to learn more about Pyrex and whether or not it is safe to use in the microwave. Also, continue reading to learn some tips you can use when choosing to use Pyrex in the microwave.

Is Pyrex Microwave Safe?

When it comes to choosing cookware for your home, you want to consider if it is microwave-safe and dishwasher-safe. When buying Pyrex cookware, you will notice on the packaging that the cookware is safe to use in the microwave, the oven, and in the freezer.

It is important to note that while the cookware packaging states that it is safe to use in each of these devices it is not safe to take the cookware immediately out of one of the devices and straight into another device. For example, it would not be safe to take the Pyrex cookware out of the freezer and put it directly into the oven.

If you only plan on using the cookware in the microwave, it should be safe to do this. You still want to be careful. If it looks as though your Pyrex cookware is starting to crack when being used in the microwave, it is best to avoid putting it in the microwave again.

Can You Microwave Pyrex Safely?

You can microwave Pyrex safely. Pyrex glassware is thicker and more sturdy than other types of glassware. This sturdiness and thickness make the Pyrex cookware more durable than others, so it should be able to be used safely when in the microwave.

You want to make sure that you use precautions when using Pyrex cookware in the microwave. For example, you do not want to put cold water in the Pyrex cookware if the cookware is hot. This can cause damage to the Pyrex cookware.

Quick temperature changes can cause damage to your Pyrex cookware. Pyrex glassware and cookware cannot handle the stress that is involved with the uneven expansion that can happen as a result of quick temperature changes. This can cause the cookware to break or burst.

For this reason, it is best to avoid using the cookware in more than one device within a short period of time. 

Will Pyrex Melt in the Microwave?

You should not be concerned about your Pyrex melting in the microwave if you are using the Pyrex cookware in normal circumstances. The borosilicate glass that is used to make the Pyrex cookware allows for the cookware to be used in the microwave, the oven, and the freezer.

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It can take a lot of heat to melt your Pyrex kitchenware. Pyrex kitchenware is designed to withstand a lot of heat. In order to melt your Pyrex kitchenware, it must reach a heat of 1,510°F or 820°C. This is a much higher temperature of heat than most conventional ovens and microwaves can reach, so there should be no issue when it comes to wondering if your Pyrex kitchenware will melt.

The kitchenware can easily become damaged if you take it from an area that is very cold and expose it to immediate heat and vice versa. This can cause the kitchenware to burst or break. While it will not cause your Pyrex kitchenware to melt, this is what it will take to damage your cookware.

Can Pyrex Go From Freezer to Microwave?

While Pyrex can safely be used in both the freezer and the microwave, you should not take a piece of Pyrex kitchenware out of the freezer and immediately put it in the microwave, or vice versa. This can cause a great deal of damage to your cookware.

Pyrex glassware, like most other pieces of glassware, can be prone to thermal shock. This means that the glassware cannot handle a rapid switch between two extreme temperatures. For example, if you are using a piece of Pyrex glassware to store something in the freezer, you do not want to immediately take it out of the freezer and place it in the microwave where it will rapidly get hot.

It is best to allow the kitchenware to sit at room temperature for a period of time to allow for it to either cool or warm before transferring the kitchenware to another device. This helps to ensure that the glassware does not become damaged due to thermal shock.

Tips to Microwave Pyrex

When it comes to using your Pyrex kitchenware in the microwave, you should not worry about the cookware being damaged, if you are using the kitchenware responsibly and avoiding putting the kitchenware in the microwave immediately after taking it out of the freezer. You should also not need to worry about the microwave melting your Pyrex cookware because it is built to be durable and used at reasonably high heat.

Below are some tips that you can use in order to ensure that your Pyrex kitchenware is not damaged when using it in either the oven, microwave, or freezer.

Allow Frozen Foods to Thaw Before Placing Them in the Microwave

  • You want to follow this tip no matter what type of kitchenware you are using.
  • It is best to allow the frozen foods to thaw at room temperature as this makes it easier to cook.
  • This also allows for your Pyrex cookware to warm before putting it in the microwave.
  • This is a great tip for avoiding thermal shock.
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Strictly Follow the Guidelines of the Manufacturer

  • It is always a good idea to follow any guidelines that are set by the manufacturer.
  • This ensures that the product is used correctly.
  • By using the product correctly, you can avoid causing any damage to the product.
  • These guidelines are also meant to ensure that the product is used safely.
  • By not following these guidelines, you can end up damaging the cookware or an appliance.
  • It is always best to read any guidelines carefully before using the cookware.
  • You do not want to ruin the cookware after the first use.

Wipe Away the Condensation or Start on Low Power

  • It is best to wipe away any condensation on the kitchenware before putting it in the microwave.
  • Condensation can cause cracks to form or can get into cracks that are already on the kitchenware and make it worse.
  • You can also gradually heat the kitchenware in order to get rid of the condensation.
  • Do not put the kitchenware in the microwave on high power if there is any kind of condensation on the kitchenware.

Other Tips

  • If you take the Pyrex out of the freezer, let it thaw before placing it in the microwave.
  • Never put the Pyrex kitchenware in one device if it has just come out of another device.
  • You can use the dishwasher to clean the Pyrex.


Pyrex is designed to withstand heat. The kitchenware made by Pyrex is designed to be durable and sturdy. The thickness of the glassware allows it to withstand heat.

Pyrex can melt if hot enough. It takes a lot of heat to be able to melt Pyrex. The heat would need to be at a temperature of at least 1,510°F or 820°C. While using a normal microwave will not melt your Pyrex, it can damage your Pyrex kitchenware if used inappropriately.

You never want to take your Pyrex kitchenware out of the freezer and immediately put it in the microwave. This can cause the kitchenware to experience thermal shock. It can cause the kitchenware to crack or burst. You also do not want to take the kitchenware out of the microwave and put it in the freezer, as this can cause the same reaction to happen.

It is best to let your kitchenware sit out at room temperature for a little while after removing it from the oven, microwave, or freezer. This allows for the kitchenware to cool down or warm up before transferring it to another device.

It is important to always follow any guidelines that come with the kitchenware. These guidelines are meant to help you ensure your kitchenware will last for a long time and that you are safe when you use the kitchenware.

Pyrex kitchenware is very popular. They can be great tools to have in the kitchen as long as you use them correctly.