Ultra-pasteurized. Naturally easy to digest. Foil lined premium pack keep fresh longer. Keep fresh longer. Periwinkle 100% natural goat's milk is ultra-pasteurized, as specialized heat treatment process that assures a fresh, long-life dairy product when properly refrigerated. Then it's placed in our exclusive foil-lined carton that provides a super-strong, light-tight barrier to seal in the freshness and flavor. Our facility supports and participates in the Global Food Safety Initiative, is a Certified Safe Quality Foods facility, and through its many quality systems is certified to exceed industry standards. About Goat's milk. Goat's milk is a 100% natural food product. Both nutritious and delicious, goat's milk is easily and more thoroughly digested because of its small, soft curd. All of the milk in this container comes from only Grade A Goat diary farms in the USA. Cream may rise to the top. Please shake well to mix. Recyclable. Only where facilities exist. Visit recyclecarton.com to see if recyclable in your area.