Description
Precision-controlled low-temperature cooking that tenderizes tough cuts through extended heat application while preserving moisture.
Technical
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.
Culinary Significance
Enables restaurant-quality doneness control in tough cuts like chuck or brisket, with near-zero moisture loss compared to traditional braising.
Science
Primary Reaction
Collagen → Gelatin (hydrolysis)
Parameters
Temperature
55°C optimal
50°C to 85°C range
Time
24 hours
1 hour – 72 hours
Equipment
Immersion circulatorVacuum sealerThermal-stable bagsPrecision thermometer