In ancient Japan, kitchens were not just spaces for cooking but also for relaxation and purification. Some ancient Japanese kitchens incorporated a built-in sauna, providing a unique and holistic experience for the residents. These kitchens were designed with a separate area for the sauna, usually made of wood. The sauna featured a heated floor and benches for seating, allowing the Japanese to enjoy the benefits of steam and heat therapy. The combination of a kitchen and sauna allowed the residents to nourish their bodies and cleanse their spirits, creating a harmonious balance between sustenance and well-being.