Spread it over the stained areas and allow it to sit before gently scrubbing.
For particularly stubborn buildup, you may need to repeat the process rather than trying to remove everything in one aggressive attempt.
Add a Little Dish Soap
For greasy baking sheets, combining baking soda with dish soap can help tackle both residue and oil.
Apply the mixture to the affected areas and let it sit for several minutes.
Then scrub gently and rinse thoroughly.
The goal is to loosen the buildup rather than damage the surface underneath it.
Don’t Forget About Soaking
One of the easiest mistakes people make is trying to remove hardened residue immediately.
Instead, fill the pan with warm water and allow it to soak.
Water has time to penetrate and soften food residue that has become hardened through repeated heating.
After soaking, some of the material may come away much more easily.
What About Very Dark or Burnt Pans?
Heavily discolored baking sheets can require more effort.
However, dark discoloration doesn’t necessarily mean the pan is unsafe or unusable.
Some staining is simply the result of years of cooking and heat exposure.
If the surface is intact and the pan is otherwise in good condition, cosmetic discoloration may not affect its function.