The ancient Inca kitchen was known for its advanced culinary techniques and innovative technologies. One such technology was a built-in vacuum system for crumbs. Inca kitchens had specially designed floors with small channels that would collect crumbs and other food waste. These channels would lead to a central collection point, where the crumbs could be easily removed. This vacuum system helped to keep the kitchen clean and free of pests, ensuring a safe and hygienic cooking environment.