New screens have to be seasoned before they can be used. Failure to do so will result in the pizzas sticking (a bit of an understatement) to the screens.
To season the screens, set your oven temperature at 425F, wipe the screens with oil and pass them through the oven for about 10-minutes. DO NOT WASH THE SEASONED SCREENS as this will cause the seasoning to begin lifting off of the screens like a bad sunburn. Then you will need to strip the screens and start all over again. After the screens are seasoned, they will have a slight amber color. This will darken to near black with continued use. This is perfectly normal. You might want to very lightly oil the screens the first time you use them after seasoning, but after that, you don’t need to oil them again.
Tom Lehmann/The Dough Doctor