Since when mankind discovered fire, we learned how to cook outdoors. And for thousands of years, natural stones have been used in many creative ways to help outdoor cooking. Sometimes as a building material, like the barbecue firepits, sometimes as the cookware, like the flat hot rocks. It is not a coincidence that ancient humans used rocks as the main outdoor cooking element, natural stones are extremely weather and heat resistant, which makes them a perfect material for outdoor kitchens.