What You Need to Know
By removing air from the marination environment, the osmotic gradient between the external brine and the muscle fibers is amplified, accelerating the transport of salts, acids, and flavor molecules into the protein matrix. The low temperature (2–4 °C) limits microbial activity while the mild heat step (≈55 °C) induces controlled myofibrillar protein denaturation, increasing water‑holding capacity and allowing deeper penetration of the marinate. Precise control of vacuum level, time, and temperature is essential to avoid uneven infusion or over‑tenderization.
The Science
Primary Reaction
Osmotic diffusion of salts, acids, and flavor molecules into muscle fibers under reduced pressure