A robust cheddar inspired by European tradition. 1939. The Sartori family is dedicated to making the best cheese in the world. We thank our great dairy-farming families in Wisconsin for sharing their premium milk with our expert cheesemakers since 1939. Proudly Cheese Wisconsin. rBST Free: No significant difference has been found in milk from cows treated with artificial hormones. www.sartoricheese.com. International Award-Winning Cheese.