Unveiling the Truth: Can Corningware Brave the Heat of the Oven?

Can you put CorningWare in the oven?

When it comes to choosing the right cookware for baking and cooking, there are numerous options on the market. From pots and pans to bakeware and dishes, the choices can be overwhelming. One popular brand that has been around since the 1950s is Corningware. Corningware is known for its durability and versatility, but can it be used in the oven? In this article, we will explore Corningware’s suitability for oven use and provide important guidelines for its safe use.

Understanding Corningware

Corningware is a unique type of cookware that was originally created by accident. It was developed when a furnace malfunctioned during glass manufacturing, creating a new material called pyroceram. Pyroceram is a strong form of ceramic that can withstand high temperatures. This led to the introduction of Corningware dishes in 1957, which were ceramic baking dishes with glass lids.
In the 1990s, Corningware changed ownership and the new brand, World Kitchen, made some changes to the original design. Instead of the glass and ceramic combination, they began using ceramic stoneware. Despite these changes, Corningware continued to be known for its durability, style and design.

Can Corningware be baked in the oven?

The good news is that all Corningware products, whether vintage or modern, are oven safe. Corningware offers a range of oven-safe stoneware and ovenware products that can withstand high temperatures. Whether you have an older piece or a newer one, you can safely use it in the oven.
Corningware is compatible with both convection and conventional ovens. It can also be used in a microwave oven. However, it is not recommended to use Corningware on the stovetop because it is unclear whether the newer dishes are safe for direct stovetop heat. Corningware can also withstand the heat of the broiler.
One of the advantages of using Corningware is its resistance to thermal shock. Unlike some glass bakeware, Corningware is less likely to shatter when exposed to sudden temperature changes. However, to be on the safe side, it is a good idea to allow Corningware dishes to come to room temperature for about 30 minutes after removing them from the refrigerator before placing them in the oven.

Vintage Corningware

Vintage Corningware follows the same guidelines as modern Corningware when it comes to oven use. Although there are rumors that Vintage Corningware can be used on the stovetop, it is recommended that it be used in the oven to avoid any potential risks. Both vintage and modern Corningware dishes are designed to withstand high temperatures and are considered oven safe.

Glass Lids and Corningware

While Corningware dishes themselves can withstand high heat, the glass lids that come with them are not intended for use in the oven. The glass lids are designed primarily for storage and to retain heat after cooking. They are not designed to withstand the high temperatures of the oven. Therefore, it is important to avoid placing Corningware glass lids in the oven to prevent potential damage or accidents. However, the glass lids can be used in the microwave.

Corningware temperature limitations

Corningware is known for its exceptional heat resistance. While most bakeware can only withstand temperatures up to 450°F or less, Corningware can withstand much higher temperatures. In fact, Corningware dishes are said to withstand temperatures up to 1,000°F. However, it is unlikely that you will ever reach such extreme temperatures in a household oven.
For optimal use and to avoid any risk, it is generally recommended that the temperature of Corningware be kept below 450°F. The main concern is to avoid thermal shock, which is a sudden and drastic change in temperature that can cause breakage. Corningware dishes can withstand significant temperature changes, such as going from a cold refrigerator to a hot oven, but it is still advisable to allow for gradual warming by letting the dish sit at room temperature for a short period of time before placing it in the oven.

Tips and tricks for using Corningware

While Corningware is highly heat resistant and can withstand high temperatures, it is important to handle it with care to ensure its longevity. Here are some tips and tricks for using Corningware safely:

  1. Avoid sudden changes in temperature: To prevent thermal shock, avoid exposing Corningware dishes to sudden temperature changes. Gradually warm the dish by allowing it to reach room temperature before placing it in the oven.
  2. Follow general bakeware guidelines: Treat Corningware as you would any other bakeware. It can be used to bake a variety of dishes, including casseroles, roasts and desserts. Follow recipe instructions for cooking times and temperatures.
  3. Use oven mitts or pot holders: Corningware dishes can get hot during cooking, so always use oven mitts or pot holders when handling them to avoid burns.
  4. Avoid direct heat sources: While Corningware can withstand the heat of the oven and broiler, it is not designed for use on direct heat sources such as stovetops or open flames. Limit use to the oven or microwave.
  5. Clean with care: Corningware is dishwasher safe, but hand washing is recommended to prolong its life. Use mild dish soap and a soft sponge or cloth to clean dishes. Avoid abrasive scrubbers or harsh cleaners that can scratch or damage the surface.
  6. Store properly: When storing Corningware, stack dishes carefully to prevent potential chips or cracks. It is best to place a piece of parchment paper or a soft cloth between stacked dishes to cushion and prevent scratching.


In conclusion, Corningware is a versatile and durable cookware that is safe to use in the oven. Whether you have vintage or modern Corningware, it is designed to withstand high temperatures and can be used to bake a wide variety of dishes. However, it is important to avoid using Corningware glass lids in the oven and to handle dishes with care to prevent potential damage. By following these guidelines and using Corningware properly, you can enjoy the benefits and longevity of Corningware in your kitchen.


Can I use CorningWare in the oven?

Answer: Yes, Corningware is oven safe and can withstand high temperatures without cracking or shattering.

What is the maximum temperature Corningware can withstand in the oven?

Answer: Corningware is typically oven safe up to 450 degrees Fahrenheit (232 degrees Celsius). However, it’s always best to check the manufacturer’s specific instructions for your particular Corningware product.

Can Corningware be used in the microwave?

Answer: Yes, Corningware is microwave safe and can be used to heat food in the microwave. However, it’s important to note that any metal accessories or lids with metal parts should be removed before placing Corningware in the microwave.

Is it safe to put a cold Corningware dish directly into a hot oven?

Answer: It is generally recommended to avoid extreme temperature changes with Corningware. To prevent thermal shock and possible breakage, it’s best to allow the Corningware dish to come to room temperature before placing it in a preheated oven.

Can I use Corningware on the stovetop?

Answer: Corningware is not intended for use on direct heat sources such as stovetops, grills or open flames. It is specifically designed for use in conventional ovens, microwaves and other heating appliances.

Is it necessary to preheat Corningware before placing it in the oven?

Answer: Although preheating Corningware is not required, it is generally recommended for best results. Preheating helps ensure even cooking and can prevent sudden temperature changes that can stress the food.