Guernsey Farms Dairy has been family owned and operated since 1940. Our products are made using only the finest ingredients specially formulated by founder John McGuire. Our products are ®BST free, which means no added hormones. Guernsey Farms Dairy Restaurant, ice cream parlor, store and gift shop are located at the same site as our dairy processing plant. Enjoy an ice cream cone sitting on the renowned rock under the oldest tree in Novi--it's a family tradition.