Koji Maker (Miso and Soy Sauce Production)
せいきくこう
Industry & Occupation
Classification
Summary
Koji makers are specialists who produce koji, the raw material for miso and soy sauce. They ensure the quality of the fermentation process through koji mold management and temperature/humidity adjustments.
Description
Koji makers are specialists in the fermentation process who inoculate steamed raw materials (rice or soybeans) with koji mold and strictly manage temperature and humidity. They regularly turn the mixture in the koji room (kojimuro) to uniformly promote mold growth. To ensure koji quality, they conduct microbial inspections and sensory evaluations, and are also responsible for hygiene management and equipment inspection and cleaning. The completed koji is used in the preparation of miso and soy sauce, playing a crucial role in determining the flavor and aroma of subsequent processes.
Future Outlook
Demand is stable due to health-oriented fermented foods and local production trends. With the introduction of IoT and automation technologies, there is a growing need for advanced quality management skills.
Personality Traits
Hygiene Conscious / Meticulous / Patient / Strong Sense of Responsibility
Work Style
Compliance with Hygiene Management / Factory Work / Shift Work / Team Work
Career Path
Apprentice Koji Maker → Koji Maker → Chief Koji Maker → Manufacturing Supervisor → Factory Manager
Required Skills
Basic Knowledge of Microbial Inspection / Hygiene Management Procedures / Temperature and Humidity Control / Turning Work
Recommended Skills
Basic Knowledge of Fermentation Engineering / IoT Sensor Operation / Quality Control / Sensory Inspection
Aptitudes (Strengths Preferred)
| Item | Description |
|---|---|
| Attention to Detail & Accuracy | Because minute differences in temperature and humidity affect quality. |
| Physical Stamina & Endurance | Requires physical strength due to frequent handling of heavy raw materials and prolonged standing work. |
Aptitudes (Weaknesses Acceptable)
| Item | Description |
|---|---|
| Creativity & Ideation | Procedures are established, and discipline is valued more than originality. |
Related Qualifications
- Food Hygiene Manager
Aliases
- Fermentation Technician
- Koji Manufacturing Worker
Related Jobs
- Brewing Technician
- Miso Manufacturer
- Soy Sauce Manufacturer