HAP is a “flavor enhancer” used in processed foods such as soups, chili, sauces, gravies, stews, potato chips, and pretzels. It is a protein derived from various animal sources, such as a selected blend of fish. HAP is a fine, free-flowing, spray-dried powder derived from selected fish. It is a light yellow to golden brown liquid with a typical meaty flavor. HAP should be packed in tightly closed containers.