What You Need to Know
The process relies on physical water removal (evaporation) at temperatures below the onset of Maillard browning (≈120 °C) and suppresses enzymatic oxidation by polyphenol oxidase. By maintaining water activity below 0.6, microbial growth is inhibited, extending shelf life without significant chemical changes.
The Science
Primary Reaction
Water evaporation (H₂O(l) → H₂O(g))