Pasteurization of goat milk using a low cost solar concentrator

FRANCO J.; SARAVIA L.; JAVI V.; CASO R.; FERANANDEZ C.

SOLAR ENERGY

Año: 2007

0038-092X

                                                                                   This paper presents the design of a system for pasteurizing goat milk as a part of a process for artisan elaboration of cheese. The system consists in a Fresnel type concentrator used for cooking large amounts of food with a vaporizer located in the focus. The steam bubbles into the isolated container where the milk is cooked by a double boiler.                                                                                When the desired temperature is reached, the steam flow is closed and the milk remains in this condition for 30 min into the closedcontainer. Pasteurizing of 10 l of milk is done in about 1 h. The project considers guidelines for achieving a successful process.