Description
Osmotic dehydration transforms tofu's protein matrix into a translucent, dense confection through controlled sugar penetration.
Technical
The process involves sequential water replacement with a concentrated soy sauce-mirin syrup (40-60°Bx), inducing Maillard reactions between reducing sugars and tofu proteins while preserving structural integrity through gradual moisture migration.
Culinary Significance
Creates a shelf-stable sweet with umami depth, used as both standalone delicacy and garnish for traditional desserts like zenzai.
Science
Primary Reaction
Non-enzymatic glycosylation of tofu proteins
Parameters
Temperature
88°C optimal
80°C to 95°C range
Time
3 hours
2 hours – 4 hours
Equipment
Donabe (earthenware pot)Otoshibuta (drop lid)Hashi (wooden chopsticks for turning)