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Step-by-Step Tutorial
PRACTICAL WALKTHROUGH · PARAMETERS · COMMON MISTAKES
Korean nuruk fermentation is a traditional process that uses a mold-based starter to convert rice starch into alcohol and flavor compounds.
Origin: Korean (Traditional (pre-20th century)) — Korea
See full technique reference →The starter contains Aspergillus oryzae and other microbes that produce amylases, proteases, and alcohol dehydrogenases. These enzymes hydrolyze rice starch into maltose and glucose, which yeast then ferments to ethanol and organic acids. The balance of microbial activity and temperature controls the flavor profile and alcohol yield.
Primary Reaction
Starch → maltose/glucose → ethanol + acids
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