In ancient Egypt, kitchens were an integral part of the household, and some of them incorporated built-in wine racks. These kitchens were typically small and simple, with mud-brick walls and a central cooking area. The built-in wine racks were often made of clay or stone and were used to store and age wine. Wine was an important part of Egyptian culture, and having a built-in wine rack in the kitchen was a way to showcase the family's collection.