This article examines some of the transformations in the kitchens of São Paulo brought about by the introduction of new sanitary concepts that were put into effect by medical and local government authorities in the last quarter of the 19th century and in the first three decades of the 20th century. In addition, we discuss the role played by the main energy companies, like The San Paulo Gas Company and, later, The São Paulo Tramway Light and Power Company in promoting the adoption of gas technologies, mainly the gas stove, as opposed to the use of firewood or charcoal for cooking. These companies played a key role in disseminating the new ideas about rationalization and hygiene, which contributed to change the household. Because of technology, the latter became dependent upon an infrastructure "system" that would articulate the private space with the public space in an unprecedented way.
Kitchen; Advertising; Gas stove; Housework; São Paulo
