Higuchi Koichi, owner of Higuchi Matsunosuke Shoten Co., Ltd., is a master in koji starter manufacturing and an expert in Japanese fermentation. He discusses the fascinating world of koji, including its various types—yellow, white, and black—and their unique roles in sake and miso. Koichi shares insights into his production process and hints at innovative projects like ‘egg koji’ for Kewpie mayonnaise. He also reflects on the cultural significance of koji and its recent recognition by UNESCO as an intangible cultural heritage.
Koji serves as a vital fermentation starter in various traditional Japanese foods, significantly influencing their flavors and health benefits.
Recent innovations, like egg koji for Kewpie mayonnaise, showcase koji's versatility and growing global demand beyond traditional Japanese cuisine.
Deep dives
Introduction to Koji and Its Significance
Koji is a crucial ingredient in various traditional Japanese fermented foods and beverages, including sake, miso, and soy sauce. It is effectively a mold starter that is responsible for fermentation, impacting the flavors and health benefits of products. Koichi Higuchi from Higuchi Matanosuke Shoten explains that there are different types of koji, such as rice koji, barley koji, and soy koji, each serving unique fermentation purposes. Recently, there has been a revitalized interest in koji as Japan seeks recognition from UNESCO, aiming to elevate this cultural cornerstone as an intangible heritage.
Production Techniques and Quality Control
Higuchi's company has evolved its production techniques while maintaining traditional values, using modern facilities to ensure quality and consistency in koji starter manufacturing. Although traditional wooden trays historically facilitated fermentation, new metal trays help mitigate contamination risks and improve overall cleanliness. The koji starter produced is specific to various uses, like sake, miso, and shochu, with the company offering different strains of koji tailored to the requirements of each. This advanced production method emphasizes the importance of humidity and temperature control to maximize the activity and quality of the koji spores.
Koji's Role in Modern Gastronomy
Chefs worldwide are adopting koji in innovative ways, adding a unique flavor profile to dishes. Notably, experimenting with koji in unconventional settings, such as marinating proteins, has sparked curiosity and new culinary trends. While there may be misunderstandings about how koji should be applied in various foods, its core function lies in enhancing flavors and potential health benefits. This growing interest in koji can lead to a broader acceptance and understanding of its versatility beyond traditional Japanese cuisine.
Future Prospects for Koji Production
Looking ahead, there is optimism surrounding the expansion of koji's application beyond Japan, driven by increasing global interest in fermentation and health-conscious eating. Initiatives like fermenting eggs for Kewpie mayonnaise exemplify innovative approaches that highlight the functionality of koji in diverse contexts. Additionally, as sake breweries and food manufacturers embrace year-round production cycles, koji’s role becomes increasingly integral to sustaining product quality. By exploring new markets and emphasizing koji's unique attributes, the industry aims to adapt to changing consumer preferences and address potential declines in domestic demand.
A few weeks ago we celebrated the exciting news of “Traditional Sake Brewing with Koji” being listed as a UNESCO Intangible Cultural Heritage (if you missed it you can find out more here) and in this episode, we decided to dive deeper into the world of koji as we had the immense pleasure of interviewing Higuchi Koichi, owner of Higuchi Matsunosuke Shoten Co., Ltd. and one of the experts in koji starter manufacturing in Japan!
Learn more about what koji is, as Higuchi breaks down the different types of koji (yellow, white, black) and their unique roles in sake brewing, miso, shoyu, and other fermented foods. He also shares his journey into the koji industry and a behind-the-scenes look at the production process, the types of koji his company produces, and some of his ongoing projects in the world of fermentation. Although many of them are rather secret, he was able to share some details about a recent collaboration with Kewpie (possibly the best-selling Japanese brand of mayonnaise in Japan) and how he is creating “egg koji” for them on a quest to bring more umami to their products…
For anyone curious about Koichi Higuchi and his company Higuchi Matsunosuke Shoten Co., Ltd., you can find more information here and if you would love to learn more about Koji and how it is used in Sake brewing check out our “Episode-23: Koji Basics” to get started.