Berkridge Kurobuta, located in the rolling hills of northwest Iowa, sources their premium Kurobuta pork from a coop of eighteen independent family farms in the Midwest, which produce Berkshire hogs according to strict standards and practices for genetics, health, feed, care and comfort. They don't mass-produce their animals, and they never use antibiotics, steroids, hormones or artificial processing. Facts 100% Pure Berkshire Kurobuta pork for sale from family owned farms in the Midwest Hormone-free Antibiotic-free Steroid-free No artificial processing No animal by-products Product of USA Storage Information Berkshire pork tenderloin will arrive in a vacuum-sealed bag. Use or freeze within 3 to 5 days. Sin the freezer for up to 6 months. To defrost, thaw for 24 to 48 hours in the refrigerator.. >