In ancient Persia, kitchens were equipped with a built-in vacuum system for crumbs. The Persians were known for their advanced engineering skills, and they applied this knowledge to their kitchens as well. They designed their kitchen 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 maintain a clean and pest-free kitchen environment, ensuring the safety of the food prepared.
