Generally it comes in two sizes.
Unglazed porcelain tile pizza stone.
Treesap 4 years ago i believe khurram was referring to the pampered chef pizza stones when speaking of those recommendations.
Unglazed quarry tiles for baking.
It is the glazing process that can react to acidic substances during cooking and release toxic products but if the tile in unglazed it is just clay.
If you decide to use quarry tiles make sure you buy unglazed quarry tiles the shiny glazing is not applied to this type of tile which allows the tiles to draw moisture out of the pizza crust making it crispy unglazed quarry tile stones tiles steel pans accessories pizza making forum.
But one of the advantages of baking stones and quarry tiles is that they are unglazed and thus allow moisture to pass out of the bread bottom for better crisping.
6 x 6 11 x 11 you will want to choose unglazed tiles that are at least inch thick although 1 is better.
I prefer the pizza stone as i can also use it for its intended purpose.
Many of you likely know the tip of using a pizza baking stone or unglazed ceramic tile in the rv oven to help even out the heating and prevent burning the bottom of things.
Now glazed tile often has lead in it so you want to be careful to get an unglazed slab.