EverFresh® is a patented, sulfite-free melanosis preventative treatment powered by 4-hexylresorcinol—a compound scientifically formulated to inhibit the enzymatic activity that causes blackspot (melanosis) in crustaceans. This natural process, triggered by polyphenol oxidase (PPO), results in unsightly brown or black pigmentation on the shell and meat, particularly in shrimp and other shellfish.

Unlike traditional sulfite treatments, EverFresh® selectively deactivates PPO without compromising the flavor, texture, or safety of the seafood. Even after rinsing or thawing, EverFresh® continues to protect against discoloration, making it ideal for block-frozen shrimp and extended cold-chain applications. Residue levels are typically under 1ppm, far below regulatory concern.