Camblab - What are the temperature limits for Pyrex glassware? (2024)

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Q: What is the highest and lowest temperature that Pyrex glassware should be exposed to?

[caption id="attachment_11003" align="aligncenter" width="254"]Camblab - What are the temperature limits for Pyrex glassware? (1) Pyrex is used in lots of lab glassware - but what is the maximum temperature Pyrex should be used at?[/caption]

A: Pyrex is suitable for use from -192°C to +500°C

This makes it an ideal choice for lab glassware which will be directly heated. Pyrex is borosilicate glass which makes it highly temperature resistant. Soda-Lime glass is less suitable for direct heating, so choose Pyrex where possible if you will be applying heat. Not only is Pyrex heat resistant, it also has high levels of chemical resistance to acids and alkalis, making it a versatile choice for your lab.Beakers, test tubes and flasks that are made from Pyrex glass are suitable for direct heating by hotplate, heating mantle or bunsen burner.Remember that heating and cooling should always be slow and steady. Pyrex can withstand huge temperature changes, but if they are too sudden it may still crack due to thermal shock.Find out more about Pyrex laboratory glassware by following the links above, or ask us below if you have any questions;

Camblab - What are the temperature limits for Pyrex glassware? (2024)


What is the temperature limit for Pyrex glassware? ›

To What temperature Is Pyrex Oven-Safe? Pyrex is oven-safe up to 425 degrees. However, direct contact with heating elements can cause the glass to shatter or break. Pyrex is not oven-safe when used under the broiler or in a toaster oven.

What temperature can Pyrex beakers withstand? ›

A: Pyrex is suitable for use from -192°C to +500°C. This makes it an ideal choice for lab glassware which will be directly heated. Soda-Lime glass is less suitable for direct heating, so choose Pyrex where possible if you will be applying heat.

What temperature does Pyrex glass melt at? ›

What temperature can a piece of pyrex glass stand up to? Borosilicate glass starts to deform at around 1200 degrees farenheit, and melts and flows like water at around 1600F.

What is the temperature limit for glassware? ›

Maximum thermal shock resistance is 160°C. Borosilicate glass can easily handle most lab temperatures, and can handle 400°C for short-term service, typically 200-230°C for normal, standard use service.

At what temperature does Pyrex shatter? ›

Is Pyrex glassware susceptible to shattering? Shattering is relatively rare, but it can happen when glassware is exposed to sudden temperature changes (known as thermal shock), extremely high heat (over 425 degrees), or direct heat.

Will Pyrex crack from hot to cold? ›

The short answer is yes—but there are a few rules you should follow. When using Pyrex or any glass bakeware or cookware, you should avoid extreme temperature changes—very cold dishes shouldn't be placed in a hot oven, and vice versa. Sudden changes in temperature may cause the dishes to shatter or break.

What is the temperature resistance of Pyrex? ›

Pyrex is supposed to be good from -192 C to + 500 C. However, there are certain precautions. Don't use it under the broiler or on the stove top. It can't take direct heat.

What is the specific heat capacity of Pyrex? ›

The specific heat capacity of Pyrex (glass), c p = 0.780 J / g ⋅ ∘ C .

How to tell if Pyrex is borosilicate? ›

If the logo is in upper case lettering, PYREX, it's most likely made of borosilicate, and thus safer. The lowercase lettering is most likely made of soda-lime glass, so take extra care after any high-heat cooking.

What temperature is too hot for glass? ›

When heated, thin glass begins to crack and typically breaks at 302–392°F. If a glass container is placed on a very hot source of heat (e.g., 500°C), it can gradually lose its shape and change from a permanent solid form to a plastic state. In general, glass jars should not be heated in a microwave or oven.

Can I put glass Pyrex in an air fryer? ›

Depending upon the sturdiness of the glass dish, you can decide whether Glass Pyrex can be used in an air fryer. If the dish is oven-safe, made of borosilicate or tempered glass, it can work in an air fryer. However, if the dish is made of soda-lime glass, it can't withstand high temperatures in an air fryer.

Can I put Pyrex on a hot plate? ›

Cooking with Pyrex over a hot plate isn't always a good idea. It can shatter or simply crack just as the one-serving cake begins to cool. Not all Pyrex, or glassware, are made the same.

What temperature can glass withstand in the oven? ›

Standard glass cannot be used in the oven because it's unable to resist heat and begins to break at 302-392 degrees F (150-200°C). The intense temperature of an oven will cause the ordinary glass to crack.

Is Pyrex glass heat resistant? ›

Pyrex glass is extremely heat resistant due to addition of Boron Oxide in its composition. Boron Oxide shows very minute expansion in high temperature, due to which Pyrex glass is capable of resisting high heat. Pyrex glass is also known as borosilicate glass.

Can you put glass in the oven at 350? ›

Avoid High Heat: Most glass should not be heated above 350 F. Some types of glass can be heated higher, so be sure to check your glassware for the recommended heat range. Inspect Glass for Cracks or Scratches: Before you place glass in the oven, inspect it for any cracks or breaks.

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