What You Need to Know
Salt curing reduces water activity to 0.85–0.88, inhibiting microbial growth. Spruce bark releases catechin and quercetin, which act as natural antioxidants, while smoking generates phenolic compounds such as guaiacol and syringol that bind to fish proteins, enhancing flavor and color.
The Science
Primary Reaction
Salt‑induced dehydration and phenolic oxidation binding to fish proteins