How should oven temperature change when baking with Pyrex or ceramic as opposed to metal?

Pyrex and ceramic bakeware require a lower oven temperature than metal bakeware. It is generally recommended to reduce the oven temperature by 25 degrees Fahrenheit when baking with Pyrex or ceramic.

* Density: Metal is denser than glass or ceramic, so it conducts heat more efficiently. For metal bakeware, more of the oven's heat energy gets absorbed and radiated into the food. Therefore, metal bakeware often requires a higher oven temperature to achieve the same level of doneness compared to Pyrex or ceramic bakeware.

* Thermal Conductivity: Pyrex and ceramic have relatively lower thermal conductivity compared to metal. This means they are slower at transferring heat. The low thermal conductivity allows food to heat more gradually and evenly in Pyrex or ceramic bakeware, potentially reducing the risk of overcooking or burning.

* Thicker Walls: Pyrex and ceramic bakeware often have thicker walls compared to metal bakeware. This thickness provides insulation which can slow down heat transfer and help maintain a more stable temperature inside the baking vessel.

* Color: The color of the bakeware can also play a role. Dark-colored bakeware absorbs heat more effectively than light-colored bakeware. If using dark Pyrex or ceramic bakeware, you may need to lower the oven temperature by a bit more to prevent overcooking.