The exact mixture and temperatures will differ depending on the tile style and where your porcelain tile is made, but there is a pretty universal recipe. The raw ingredients and water are combined with grinding beads in a large mixer until the mixture reaches the right consistency. Before the tile is formed, some of the water inside needs to be evaporated in a dryer. This helps create a harder and more durable end product.
The ingredients are then pressed into a template at more than 5,000 pounds per square inch. This extreme pressure helps to solidify the tile form and adds to the strength that porcelain tile are known for. From there, the tile are left to dry again to remove more water. Now, it’s time to paint on a finish and apply a glaze for stain resistance.
Finally, the tile is baked at scorching temperatures of 25,000 ℉ or higher. This sets the glaze and removes even more water from the tile. Removing as much water as possible reduces the risk of cracking in freezing temperatures after the tile are set.