Are you wondering if your beloved glass Pyrex dishes are safe to use in the oven? You're not alone. Pyrex, a popular brand for glass bakeware, has been a staple in many kitchens for decades. But with so many different types of Pyrex products available, it can be confusing to know which ones are oven-safe. Let's dive into the world of Pyrex and find out which of their products can withstand the heat of your oven.

Understanding Pyrex Materials

Pyrex is known for its durable, heat-resistant glass. However, not all Pyrex products are created equal. The company uses different materials for their products, each with its own set of properties and heat tolerances.
- Tempered Glass: This is the traditional Pyrex glass. It's heat-resistant and can withstand sudden temperature changes. However, it's not as durable as other materials and can break if exposed to extreme heat or sudden temperature changes.
- Borosilicate Glass: Introduced in the 1990s, borosilicate glass is more durable and heat-resistant than tempered glass. It can withstand higher temperatures and is less likely to break when exposed to sudden temperature changes.
- Stoneware and Ceramic: Pyrex also offers stoneware and ceramic dishes. These are oven-safe and can withstand high temperatures. However, they may not be suitable for all oven temperatures and may require specific care instructions.

Which Pyrex Products are Oven-Safe?
Now that we understand the different materials used in Pyrex products, let's look at which ones are oven-safe.

Tempered Glass Dishes
Traditional Pyrex glass dishes, made from tempered glass, are generally oven-safe. They can withstand temperatures up to 425°F (220°C). However, it's important to note that they should not be placed under the broiler or exposed to sudden temperature changes, as this can cause them to break.
Borosilicate Glass Dishes

Pyrex dishes made from borosilicate glass are more heat-resistant than their tempered glass counterparts. They can withstand temperatures up to 900°F (480°C) and are safe to use under the broiler. They are also less likely to break when exposed to sudden temperature changes.
Stoneware and Ceramic Dishes
Pyrex stoneware and ceramic dishes are also oven-safe. They can withstand high temperatures and are often safe to use under the broiler. However, it's important to check the specific care instructions for each product, as some may not be suitable for all oven temperatures.

Pyrex Oven Safety Tips
Even with oven-safe Pyrex products, it's important to follow some safety guidelines to ensure they last as long as possible.


















- Preheat the oven gradually to avoid sudden temperature changes.
- Do not place Pyrex dishes on preheated oven racks. Instead, place them on a lower oven shelf and allow the oven to preheat around them.
- Do not place Pyrex dishes directly on the oven floor. Always use a baking sheet or oven-safe dish to protect the glass.
- Allow Pyrex dishes to cool gradually after removing them from the oven. Sudden temperature changes can cause them to break.
- Do not use Pyrex dishes on the stovetop or under the broiler if they are not specifically designed for that purpose.
Pyrex Oven Safety Chart
Here's a quick reference chart to help you understand which Pyrex products are oven-safe and at what temperatures:
| Pyrex Material | Oven-Safe? | Max Temperature | Broiler-Safe? |
|---|---|---|---|
| Tempered Glass | Yes | 425°F (220°C) | No |
| Borosilicate Glass | Yes | 900°F (480°C) | Yes |
| Stoneware and Ceramic | Yes | Varies by product | Varies by product |
Always remember to check the specific care instructions for your Pyrex products, as these can vary depending on the product and its intended use.
In the world of Pyrex, not all products are created equal. While traditional tempered glass dishes are oven-safe, they should be used with caution. Borosilicate glass dishes, on the other hand, are more heat-resistant and can withstand higher temperatures. Stoneware and ceramic dishes also offer excellent heat resistance. By understanding the materials used in your Pyrex products and following the appropriate safety guidelines, you can ensure that your dishes last for years to come.