Description
A gelatin-based glaze that creates a reflective, glass-like surface on desserts or meats through controlled thermal gelation.
Technical
Involves hydration and melting of collagen-derived gelatin (typically 200-250 Bloom strength) in a liquid medium (water, stock, or fruit puree) with sugar (40-60% w/w) and often pectin (0.5-1.5%) for improved sheen, followed by precise temperature control (35-45°C) during application to ensure even coating without premature setting.
Culinary Significance
Provides both visual appeal and protective coating, preventing oxidation while adding minimal flavor interference.
Science
Primary Reaction
Helix-coil transition of gelatin polypeptides
Parameters
Temperature
40°C optimal
35°C to 45°C range
Time
1 hour at 4°C
15 min (setting) – 4 hours (full cure)
Equipment