Description
A Japanese technique using boiling water to pre-gelatinize wheat flour starches, creating softer and moister bread textures.
Technical
Yudane involves hydrating flour with boiling water (typically 1:1 ratio by weight), which causes starch granules to swell and gelatinize through hydrogen bond disruption. This pre-gelatinization increases water absorption capacity and reduces starch retrogradation during cooling.
Culinary Significance
Produces bread with exceptionally soft, moist crumb and extended freshness by modifying the starch structure before final dough mixing.
Science
Primary Reaction
Starch gelatinization (60-70°C)
Parameters
Temperature
98°C optimal
95°C to 100°C range
Time
12 hours
4 hours – 24 hours
Equipment
Heatproof mixing bowlDigital scaleDough scraper