How long does it take to make Soy Sauce (Traditional Brewing)?
Soy Sauce (Traditional Brewing) takes 2.0 years — from start to finish across 5 stages.
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Timeline Overview
Total Duration
2.0 years
Stages
5
Category
Fermentation
Traditional Japanese soy sauce (honjozo) ferments for 1-3 years. Industrial soy sauce is made in 2 days using acid hydrolysis — completely different product.
Stages
Koji Preparation 3 days
Soybeans and wheat inoculated with Aspergillus mold
Brine Fermentation (Moromi) 6 months
Koji mixed with salt brine, begins slow fermentation
Standard Aging 1.0 years
1 year — minimum for quality honjozo
Premium Aging 2.0 years
2-3 years — deeper, more complex flavor
Pressing & Pasteurization 1 week
Liquid pressed from moromi, heated, bottled
For perspective...
That's 2.0 years. A child born today would be 2 years old when this finishes.
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Frequently Asked Questions
How long does it take to make Soy Sauce (Traditional Brewing)?
Traditional Japanese soy sauce (honjozo) ferments for 1-3 years. Industrial soy sauce is made in 2 days using acid hydrolysis — completely different product.
What are the stages of making Soy Sauce (Traditional Brewing)?
There are 5 main stages: Koji Preparation, Brine Fermentation (Moromi), Standard Aging, Premium Aging, Pressing & Pasteurization.
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