What You Need to Know
Hypertonic salt solution draws moisture via osmosis, denaturing proteins and reducing water activity (Aw <0.85). Concurrently, salt penetrates tissue, disrupting bacterial enzyme function.
Creates shelf-stable skins with concentrated umami, later rehydrated for textural contrast (e.g., crackling).
Key Parameters
Temperature
3°C
0°C - 15°C
Time
1 week
24 hours - 3 months
Equipment
Non-reactive vessel (stainless/glass)CheeseclothCuring weights (2-5kg/dm²)
Steps
- 1.
Salumi crusta (Italy): Forms impermeable salt crust for slow muscle curing
- 2.
Lap yuk (Guangdong): Pre-fry dehydration for wok hei oil infusion
The Science
Primary Reaction
Osmotic equilibrium