Certainly the finest and most well-known cheese of Valtellina valley, Bitto is a semi-hard or hard cheese, sold after it has been aged anywhere from 40 days to 3 years. The ancient production technique of this iconic Lombardian cheese dates back to the Celts, who were expert shepherds and dairymen.
Having been forced off the plains by the Romans, they found refuge in the mountainous region of Valtellina. Bitto is made from cow's milk with the addition of 10-20% of goat's milk. Young bitto is called giovane and it is soft in texture, white in color, and has a sweet flavor, similar to Gruyère.