Emilie Meyer
Pyrex is a brand of glass cookware that has been manufactured since 1915. Originally, Pyrex was made using borosilicate glass, which made it resistant to thermal shock. However, newer Pyrex is made using tempered soda lime glass, which is less heat-resistant and more prone to thermal shock. As a result, it's important to take precautions when using Pyrex in the oven to avoid breakage or shattering. It's recommended to let Pyrex dishes come to room temperature before placing them in the oven or freezer and to avoid extreme temperature changes. Pyrex is generally safe to use in the oven up to temperatures of 425°F, but it's important to check the manufacturer's guidelines for specific products.
| Characteristics | Values |
|---|---|
| Oven-safe | Yes, up to 425°F (218°C) |
| Extreme temperature changes | Avoid |
| Thermal shock | Avoid |
| Room temperature | Let the dish reach room temperature before placing it in the oven or freezer |
| Preheating | Preheat the oven before placing Pyrex dishes inside |
| Stovetop | Do not use Pyrex on the stovetop |
| Broiler | Do not use Pyrex under the broiler |
| Toaster oven | Do not use Pyrex in a toaster oven |
| Grill | Do not use Pyrex on a grill |
| Countertop | Do not place hot Pyrex dishes directly on the countertop |
| Countertop protection | Place hot Pyrex dishes on a potholder, dry cloth, hot pad, or trivet |
| Freezer-to-oven | Do not place Pyrex dishes directly from the freezer into the oven |
| Oven-to-sink | Do not place Pyrex dishes directly from the oven into the sink |
| Logo | PYREX (all uppercase) is made of borosilicate glass, pyrex (all lowercase) is made of soda-lime glass |
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What You'll Learn
Pyrex is oven-safe up to 425°F
Pyrex is a brand of glass cookware that has been manufactured since 1915. Pyrex dishes can be put in the oven, but there are some important safety considerations to keep in mind. Firstly, it's crucial to ensure that your Pyrex dish is at room temperature before placing it in the oven. This is because Pyrex dishes can experience ""thermal shock"" when exposed to drastic temperature changes, which can lead to breakage or shattering. To avoid this, let your Pyrex dish come to room temperature before placing it in the oven or freezer. Additionally, it's important to avoid direct contact between the Pyrex dish and heating elements, as this can also cause the glass to shatter or break.
Pyrex dishes are generally oven-safe up to temperatures of 425°F. However, it's important to note that modern Pyrex is made of tempered soda lime glass, which may be less heat-resistant than the borosilicate glass used in older Pyrex dishes. While Pyrex is safe for oven use, it should not be used on the stovetop, under a broiler, or in a toaster oven as these can expose the glassware to potentially damaging direct heat sources.
To ensure the safe use of Pyrex in the oven, follow these guidelines:
- Always preheat your oven before placing Pyrex dishes inside.
- Avoid extreme temperature changes by bringing your Pyrex dish to room temperature before transferring it to the oven or freezer.
- Do not place Pyrex dishes directly on countertops when hot; instead, use potholders or dry cloths to prevent breakage.
- Avoid direct contact between Pyrex dishes and heating elements, as this can cause shattering or breakage.
- Do not use Pyrex dishes with plastic lids in the oven, as the plastic will melt.
- Always handle Pyrex glassware with care to prevent personal injury or property damage.
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Avoid thermal shock
Pyrex dishes can go in the oven. However, they are not as resistant to thermal shock as they once were. Pyrex products were originally made of borosilicate glass, which could withstand large and sudden temperature swings. In the 1950s, the company switched to manufacturing products with tempered soda lime glass, which is more susceptible to thermal shock.
To avoid thermal shock when using Pyrex in the oven, follow these tips:
- Avoid extreme temperature changes. Do not take Pyrex dishes directly from the freezer and place them into a hot oven, or vice versa. Allow dishes to come to room temperature before placing them in the oven or freezer.
- Do not place Pyrex dishes on a cold or wet surface after removing them from the oven. Instead, place them on a dry dish towel, metal cooling rack, potholder, or dry cloth.
- Do not place Pyrex dishes on the stovetop, under the broiler, in a toaster oven, or on a grill.
- Always preheat the oven before placing Pyrex bakeware inside. Do not preheat the bakeware in the oven.
By following these guidelines, you can help prevent thermal shock and reduce the risk of breakage or shattering of your Pyrex dishes.
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Let Pyrex come to room temperature before cooking
Pyrex is a brand of glass cookware that has been manufactured since 1915. It was originally made using borosilicate glass, which is more heat-resistant and durable than other kinds of glass. However, modern Pyrex is made of tempered soda lime glass, which is less expensive and more eco-friendly but less resistant to temperature changes. As a result, Pyrex dishes can be prone to "thermal shock," which happens when glassware is exposed to drastic temperature changes it can’t handle, causing it to break or shatter.
To avoid thermal shock and limit the chances of your Pyrex dish shattering, it is important to let the dish come to room temperature before placing it in the oven. This is especially important if you are taking the dish out of the refrigerator or freezer, as you do not want to go from extreme cold to extreme heat. For example, if you are baking a lasagna, do not place it directly in the oven after removing it from the freezer. Instead, let it sit out until it reaches room temperature, and then bake it. The same process should be followed when taking the dish out of the oven; let it get to room temperature before placing it in the refrigerator or freezer.
Allowing your Pyrex dish to come to room temperature before placing it in the oven can help to prevent thermal shock and limit the chances of it shattering. This is because the glass needs time to adjust to the temperature change. By letting the dish come to room temperature, you are giving the glass time to adjust to the new temperature gradually, rather than shocking it with a sudden change.
It is also important to note that Pyrex dishes should only be placed in a preheated oven. This ensures that the oven has reached a consistent temperature, which can also help to prevent thermal shock and breakage. Additionally, when removing a Pyrex dish from the oven, do not place it directly on a countertop or in the sink. Instead, place it on a potholder, dry cloth, or trivet to prevent breakage.
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Don't place hot Pyrex directly on countertops
Pyrex dishes can go in the oven up to 425ºF. However, Pyrex is susceptible to thermal shock, which occurs when glassware is exposed to drastic temperature changes. To avoid thermal shock, it is recommended that Pyrex dishes are not taken directly from the oven and placed on a countertop. Instead, they should be placed on potholders or dry cloths to prevent breakage.
Modern Pyrex is made of tempered soda lime glass, which is less heat-resistant than borosilicate glass and more prone to thermal shock. By placing a hot Pyrex dish on a cool countertop, the glass may experience thermal shock and shatter. This can create a safety hazard and ruin any food in the dish.
To avoid thermal shock and potential breakage, it is important to let Pyrex dishes cool to room temperature before placing them on a countertop or storing them in the refrigerator or freezer. Additionally, when removing Pyrex dishes from the oven, it is recommended to place them on a dry cloth or potholder, or on a wooden trivet or cooling rack.
When using Pyrex dishes in the oven, it is also important to avoid extreme temperature changes. For example, it is not recommended to move a Pyrex dish from the fridge to an oven above 350ºF, as this could cause thermal shock and potential breakage. Instead, it is advised to let the dish rest at room temperature for 15 to 30 minutes before placing it in the oven.
By following these precautions and allowing Pyrex dishes to adjust to room temperature gradually, the risk of thermal shock and breakage can be significantly reduced.
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Avoid using Pyrex under the broiler or in a toaster oven
Pyrex dishes can be used in the oven, but there are some important safety considerations to keep in mind. Firstly, it is crucial to avoid extreme temperature changes as this can cause thermal shock, leading to cracking or shattering of the dish. Therefore, it is recommended to let the Pyrex dish come to room temperature before placing it in the oven or freezer. This is especially important if the dish was previously frozen, as transferring it directly from the freezer to a hot oven can cause it to shatter.
Additionally, Pyrex should not be used under the broiler or in a toaster oven due to the risk of uneven heating and direct contact with heating elements, which can also result in shattering or breakage. While Pyrex is generally oven-safe, it is important to check the manufacturer's guidelines for specific instructions, as not all glass kitchenware is certified for high temperatures.
To ensure the longevity of your Pyrex dishes and avoid potential hazards, it is best to follow these safety precautions and treat your dishes with care. Always let the dish rest until it is cool enough to handle before cleaning or storing, and avoid placing hot dishes directly on countertops or in cold water to prevent thermal shock.
It is also worth noting that modern Pyrex is typically made of tempered soda-lime glass, which is less heat-resistant than the borosilicate glass used in older Pyrex dishes. As such, newer Pyrex dishes may be more prone to temperature-related failure, so it is advisable to exercise caution and avoid extreme temperature changes whenever possible.
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Frequently asked questions
Yes, Pyrex can go in the oven. Pyrex dishes can be used to cook, bake, warm or reheat food in pre-heated conventional and convection ovens. Pyrex is oven-safe up to 425 degrees Fahrenheit.
Pyrex dishes should be allowed to come to room temperature before placing them in the oven. This is to avoid thermal shock, which can cause the dish to crack or shatter.
Pyrex dishes should not be exposed to direct contact with heating elements, which can cause the glass to shatter or break. Pyrex is not oven-safe when used under the broiler or in a toaster oven.
Pyrex dishes with logos in all-caps are made of borosilicate glass and can be heated at high temperatures without harm. Pyrex dishes with lowercase logos are usually made of soda-lime glass and should not be heated in the oven.
