Foodgeist is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate we earn from qualifying purchases.
Step-by-Step Tutorial
PRACTICAL WALKTHROUGH · PARAMETERS · COMMON MISTAKES
Sake rice fermentation converts polished rice starch into ethanol through a two‑stage biological process involving koji mold and specialized yeast.
Origin: Japanese (Nara period (8th century) – Edo era) — Japan
See full technique reference →During the koji stage, Aspergillus oryzae secretes α‑amylase and glucoamylase that hydrolyze starch into glucose and maltose. These sugars are then fermented by Saccharomyces cerevisiae var. sake at low temperatures, producing ethanol and CO₂ while maintaining a pH around 4.2 to suppress unwanted microbes.
Primary Reaction
α‑amylase‑mediated hydrolysis of starch → glucose/maltose → alcoholic fermentation to ethanol
You're reading one of techniques available free. Full library with Gastronome.
Key Variables