Ultra-pasteurized. Our farmers pledge no artificial growth hormones (No significant difference has been shown in milk from cows treated with the artificial growth hormone rbST and non rbST treated cows.). As your trusted dairy, we're passionate about the purity of our creams. That's why we hold our cream to the highest standard. Our farmers pledge to never use artificial growth hormones, just like we promise to always deliver quality dairy products from farm to fridge. Add our rich heavy whipping cream to all your favorite recipes. Try all of our DairyPure products. www.dairypure.com. Comments? 1-800-395-7004. Grade A. Ultra-pasteurized.