https://www.siliconvalley.com/2021/02/18/new-bay-area-cloud-kitchens-bring-wise-sons-senor-sisig-and-more-to-oakland-lafayette-san-jose/

The term “cloud kitchen” makes it sound like a virtual kitchen floating in the sky and dropping food wherever it goes. But the pandemic-era concept is really rather simple: Several restaurants share a large commercial kitchen to crank out their most popular menu items for takeout and delivery.

The advantage is also simple: Those businesses expand their reach across the Bay Area, and anyone ordering food in Walnut Creek, say, will get it faster and fresher when it’s prepared in Lafayette, as opposed to its brick and mortar in Oakland or San Francisco.