No, Corningware should not be used inside a pressure cooker. Corningware is a type of glass-ceramic cookware, which is not designed to withstand the high pressures that occur in a pressure cooker.
Pressure cookers create a sealed environment that traps steam, raising the pressure and temperature inside the pot to cook food quickly. The pressure can reach levels significantly higher than what typical cookware, including Corningware, is built to handle. Using Corningware in a pressure cooker can lead to breakage, shattering, or even explosions, posing a significant safety risk.
For pressure cooking, it's essential to use cookware specifically designed for that purpose. Pressure cookers usually come with their own metal inner pots made to withstand the high pressure and temperature involved in pressure cooking. These inner pots are typically made from stainless steel or aluminum and are safe to use inside the pressure cooker.
If you want to cook with Corningware, stick to using it in a conventional oven or microwave, where it is designed to be used safely. Always refer to the manufacturer's instructions and guidelines for the proper use and care of your cookware to ensure safety and longevity.