What You Need to Know
Utilizes collagen hydrolysis (conversion to gelatin at 55-70°C) and myofibrillar protein denaturation without exceeding connective tissue shrinkage thresholds (60-65°C). Vacuum sealing prevents oxidative deterioration.
Enables restaurant-quality doneness control in tough cuts like chuck or brisket, with near-zero moisture loss compared to traditional braising.
Key Parameters
Temperature
55°C
50°C - 85°C
Time
24 hours
1 hour - 72 hours
Equipment
Immersion circulatorVacuum sealerThermal-stable bagsPrecision thermometer
Steps
- 1.
72-hour short ribs (Thomas Keller): Converts epimysium to spoon-tenderness
- 2.
Duck confit (Modernist Cuisine): Fat rendering without moisture loss
The Science
Primary Reaction
Collagen → Gelatin (hydrolysis)