Warming tiles are great for hosting. keep bread, rolls, muffins, scones, bagels & tortillas warm with our oven safe warming tile that fits nicely at the bottom of a basket or bread bag. heat stoneware tile in a 350° f oven for ten minutes. place the heated tile along the bottom of a basket or bread bag. layer a towel under or over the tile, placing bread on top. fold the corners of the towel over bread to retain warmth. slight variations in color are to be expected—each piece is one-of-a-kind, no two pieces will be exactly alike. oven safe up to 400° f.