Ancient Japanese cuisine is known for its emphasis on fresh, seasonal ingredients and delicate flavors. Some ancient Japanese kitchens incorporated built-in indoor vertical gardens with LED grow lights. These gardens allowed the Japanese to grow a variety of herbs and vegetables, such as green onions, shiso leaves, and daikon radishes, right in their kitchens. The LED grow lights provided the necessary light spectrum for optimal plant growth, ensuring a constant supply of fresh and flavorful ingredients. This combination of a built-in vertical garden and LED grow lights showcased the Japanese's commitment to using the freshest ingredients in their traditional dishes.