Primo Glazed Ceramic Baking Stone, 16-Inch, for Oval X-Large and Large and Round

Which Primo grills does this 16-inch stone fit?

The listing names the Oval X-Large, the Oval Large and the Round. The Oval Junior is not on that list; the 13-inch glazed stone is the one that includes the Junior. Check the size words in the title against your grill before ordering.

What is the difference between the glazed and the natural finish stone?

The finish, which is what the two titles state and as far as we will take it. Primo does not publish a performance comparison between them, so we are not going to invent one. Both are listed in the same two diameters and cover the same grills; the natural finish sits lower on price.

Should I get the 16-inch or the 13-inch?

The 16-inch gives you the larger baking surface and is the one to pick for full-sized pizza and bread. The 13-inch leaves more open grate around the edge, suits smaller bakes, and is the only diameter listed for the Oval Junior. Grill size and pizza size together decide it.

Do I need a heat deflector as well?

For anything you are baking rather than grilling, yes. The deflector is what stops the fire reaching food directly and turns the grill into an oven; the stone then supplies an even floor to bake on. They are complementary parts rather than alternatives, which is why most indirect setups run both.

How do I look after a ceramic baking stone?

Heat it and cool it with the grill instead of moving it between hot and cold, which is how stones crack. Scrape residue off rather than washing it, and leave soap out of it entirely. Discolouration from use is expected and does not affect how it cooks.