Methods and systems describing preparation of a beverage are described. One embodiment includes preparing a beverage taking into account properties of an ingredient, such as sugar content of apple juice, as well as an individuals health data such as the individuals insulin level. Other embodiments include preparing a beverage based on data such as an individuals goal to lose weight. Some embodiments include a recipe such as a beverage recipe to start preparing the beverage. In some embodiments, the ingredients, amount, and instructions in a recipe may remain the same or be changed depending on factors such as health data, properties of an ingredient, and others. In other embodiments, a beverage is prepared so that the beverage meets a set of predetermined threshold criteria such as a pH level, and the ingredients and the amounts of the ingredients may be adjusted to meet these criteria.