The pie plate is not porous and can be washed with soap and water.

After removing the pie from the hot oven, put it on a hot pad or thick towel rather than on a cold or damp surface.The unglazed red clay finish produces a beautifully browned bottom crust.

The pie plate and pie should be at room temperature before putting it into a hot oven.

No, you don't need to use anything on the pie plate.