Elizabeth O. Hiller, Left-over foods and how to use them (1910)
“ Never allow either cream or milk to stand uncovered. There is nothing gained by paying a fancy price for milk which has been pasteurized and kept clean, under the most sanitary conditions in the dairy, before delivery to the consumer, if the latter does not know how to take care of it and leaves it uncovered, in a hot kitchen or in a refrigerator, with other uncovered food. There need be no surprise if it sours quickly and develops an unpleasant flavor; for both milk and butter will absorb odors and flavors when thus exposed, which will render them unfit for use. ”
