Porcelain tiles undergo a specialized baking process at high temperatures, which enhances their thickness and durability. This process also imparts impermeable properties to the tiles, making them highly resistant to water absorption. On the other hand, vitrified tiles are produced through a vitrification process that gives them a distinct glass-like appearance. This process creates a remarkably uniform and sturdy substance, resulting in tiles that are both visually appealing and highly durable.