A method of and incubator for preparing bacterial cultures, especially bacterial cultures for producing fermented milk products such as yogurt by inoculation and heat treatment of a nutrient solution with an external culture in a sterilized incubator, according to which the incubator is charged and discharged...http://www.google.com/patents/US3975239?utm_source=gb-gplus-sharePatent US3975239 - Method of and incubator for preparing bacterial cultures
