Can Pyrex Go In The Dishwasher?

By Cory White
Can Pyrex Go In The Dishwasher?

Pyrex, known for its durability and versatility, has long been a staple in kitchens worldwide. But when it comes to cleaning, a common question arises: Can Pyrex go in the dishwasher? Luckily, modern Pyrex is dishwasher-safe! However, it’s important to use the dishwasher’s gentle cycle to ensure the longevity of your Pyrex dishes.

In this article, join me as I examine how well Pyrex works with dishwashers, exploring the advantages, drawbacks, and factors to consider. I’ll also investigate the effects of heat, detergents, the materials used in Pyrex manufacturing, and some tips to help you preserve its quality and extend its lifespan. Let’s jump in!

Understanding Pyrex

pyrex on stove

Pyrex is a popular brand name for kitchenware products that are known for their durability and versatility. The magic of Pyrex lies in its composition — Pyrex is made from a special type of glass known as borosilicate glass, which was designed to endure substantial temperature fluctuations.

The borosilicate glass is created by adding boron into the mixture of silicate glass, which allows it to resist heat and chemical erosion far better than standard glassware. This unique composition ensures Pyrex products are usage-friendly, whether you’re cooking a hot dish in the oven or freezing leftovers. 

Is Pyrex Dishwasher Safe?

The versatility of Pyrex extends beyond cooking and storage, raising the question: Is Pyrex dishwasher-safe? The answer, in general, is yes. Current Pyrex products are manufactured to be dishwasher-safe, making clean-up a breeze after a hearty meal.

However, while Pyrex products are designed to withstand temperature variances in cooking, the abrasive nature of some dishwasher detergents can cause the glassware to deteriorate or become cloudy over time. Therefore, a gentle wash setting and mild detergent are recommended for maintaining the appearance and life of your Pyrex dishes.

Different Types of Pyrex and Dishwasher Safety

The Pyrex brand encompasses a variety of products, each with its unique materials and related safety considerations when it comes to dishwashing. Within this range, we find items made from borosilicate glass, tempered glass, and even some ceramic pieces.

  • Borosilicate glass, which is the material of traditional Pyrex products, is both oven and dishwasher-safe.
  • Tempered glass Pyrex products are also oven safe and can be washed in a dishwasher, with a preference for top-rack placement and gentle detergent.
  • Porcelain and stoneware Pyrex products are dishwasher safe, but like their glass counterparts, should be placed on the top rack.

Lastly, many Pyrex items come with plastic lids for storage purposes. These lids are typically top-rack dishwasher safe, but double-checking the care instructions is always a good practice. 

Pyrex and Dishwasher Racks

empty dishwasher

The placement of Pyrex in your dishwasher can play a critical role in its safe and effective cleaning. While Pyrex is relatively robust, strategic placement can help avoid any potential damage.

As a general guideline, it’s recommended to place Pyrex dishes on the top rack of your dishwasher. Why the top rack? Simply put, the top rack is further from the heating elements, which reduces the risk of thermal shock damage. Moreover, dishes on the top rack are subjected to less intense water jets, reducing the occurrence of scratches and chips.

How to Load Pyrex in the Dishwasher

Loading your Pyrex items properly in the dishwasher is vital for effective cleaning and preventing any unnecessary mishaps. Here are some practical guidelines for you to follow:

  • Ensure that your Pyrex is cool before putting it in the dishwasher. Rapid temperature changes could lead to thermal shock, causing it to crack or break.
  • Place your Pyrex items on the top rack of the dishwasher. This location is further from the dishwasher’s heating element and keeps your dishware away from the more powerful sprays of water.
  • Use the dishwasher’s prongs and slots strategically, ensuring the dishes are secure while leaving enough room in between so they don’t knock against each other during the wash cycle.
  • When it comes to Pyrex lids, they are generally top-rack dishwasher safe. However, refer to the manufacturer’s care instructions for specifics.

Vintage Pyrex and Dishwasher Safety

vintage pyrex

Vintage Pyrex pieces can add a touch of nostalgia to your kitchen. However, due to their age and different manufacturing methods, these items require extra care, particularly in terms of dishwasher safety.

Vintage Pyrex is typically not recommended for dishwashing. The intense water pressure, high heat, and harsh detergents can often damage the decorative designs or make the glass cloudy. Also, the potential for thermal shock, which can cause the glass to crack or break, is higher with vintage pieces.

So, while modern Pyrex may handle a spin in your dishwasher just fine, the golden rule for preserving your vintage Pyrex dishes is to wash them gently by hand. This helps retain their beauty and extend their lifespan, ensuring they provide utility and aesthetic appeal for years to come.

Cleaning Pyrex by Hand: An Alternative to Dishwashing

handwashing pyrex

Sometimes, giving your Pyrex a gentle hand wash can be a good alternative to dishwashing, especially for delicate or vintage pieces. Here’s how you can do it properly:

  1. Start by letting the Pyrex cool if it has been heated. Remember, sudden temperature changes are not Pyrex-friendly.
  2. Fill a sink or basin with warm (not hot) soapy water. Use a mild dish soap that effectively cleans without being too harsh on your dishes.
  3. Submerge your Pyrex item in the water and clean it with a soft sponge or cloth. Avoid any abrasive cleaning tools like steel wool, as they can scratch the surface.
  4. Rinse thoroughly under warm water to ensure all soap residue is removed.
  5. Dry your Pyrex well before storing it to avoid any water spots or streaks.

Top Tips for Pyrex Care

Proper care is crucial to extend the lifespan and maintain the appearance of your Pyrex. Here are a few key tips for your Pyrex care routine:

  • Ensure Pyrex is cool before loading it into the dishwasher, as sudden temperature changes can lead to thermal shock, causing it to break.
  • Place Pyrex items on the top dishwasher rack, which is gentler and further away from the heating elements.
  • Use a gentle dishwasher detergent to keep the glass from becoming cloudy over time.
  • For vintage Pyrex, opt for a gentle hand wash to prevent damage to decorative designs and maintain their vintage charm.
  • Dry your Pyrex well before storage to avoid water streaks or spots.


In conclusion, while modern Pyrex is generally dishwasher safe, remember to use a gentle cycle and mild detergent to preserve your pieces’ integrity. Vintage Pyrex calls for a bit more tenderness, favoring a gentle hand wash over the dishwasher. But whether you hand wash or use a machine, care is key in maintaining your Pyrex. By understanding these considerations and following the provided tips, you can ensure that these trusty kitchen companions will stand the test of time.

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