Description
Gentle indirect heating via water bath that prevents thermal shock and maintains temperatures below 100°C.
Technical
Heat transfer occurs through convection in the water medium, creating a thermal buffer that prevents direct contact with heat sources. The water bath's high specific heat capacity (4.184 J/g°C) ensures even energy distribution while the phase change at 100°C provides automatic temperature regulation.
Culinary Significance
Essential for temperature-sensitive preparations where protein coagulation (custards), fat crystallization (chocolate), or starch gelatinization (sauces) require precise thermal control without hot spots. The technique prevents scorching, curdling, and separation in delicate emulsions.
Science
Primary Reaction
Controlled protein denaturation and fat phase stabilization
Parameters
Temperature
82°C optimal
60°C to 95°C range
Maintain 2-3cm water gap between bath and vessel bottom
Time
25-40 minutes
10 minutes – 2 hours
Depends on thermal mass of preparation
Equipment