Must Be Ruff Dehydrated Beef Liver Dog Treats are a simple, protein-rich reward made with just one ingredient: 100% real beef liver. The liver is slowly dehydrated to preserve its natural flavor and nutrients, creating crunchy, bite-size pieces that are perfect for training, rewarding, or treating your pup. Made in small batches in Minnesota, these treats are grain-free, filler-free, and contain no glycerin or mystery ingredients. Break the pieces into smaller portions for training or offer larger pieces as a special reward.