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Embracing the Dawn of Koji Coffee | The Unique Process with Japanese Koji


Nice to Meet You: Introducing myself from haiz coffee / SABO Inc.

Nice to meet you! My name is Deko, and I am the CEO of SABO Inc., a company in Japan that runs a roastery and café and has been wholesaling micro-lot green coffee beans since last year. I visit Colombia during the harvest season to purchase coffee beans twice a year. normally you would think that coffee buying is the main thing, but my main focus is actually on conducting research.
A passion for new ideas and counter-cultural approaches drives my activities.

our coffee shop

Especially since last summer, we have seen the rapid development of AI, and I have come to believe that there is value in taking on unprecedented challenges that have not yet been documented or turned into data. Therefore, I want to share ideas with all of you and work together to bring interesting concepts to life, contributing to the overall development of the specialty coffee industry.

Discussion about coffee with our friend and production partner Alejandro


Koji: A Japanese Culinary Staple

Koji, scientifically known as Aspergillus oryzae, is a filamentous fungus that has been integral to Japanese cuisine for centuries. The cultivation of Koji involves growing the fungus on a substrate, such as rice, barley, or soybeans, which provides it with nutrients to grow and release enzymes.

These enzymes play a crucial role in breaking down the substrate's carbohydrates, proteins, and fats, converting them into simpler compounds like sugars, amino acids, and fatty acids. This fermentation process imparts distinct flavors, aromas, and textures to the final products.

  • Sake, a traditional Japanese rice wine, relies on Koji to convert the starches in the rice into fermentable sugars, which are later converted into alcohol by yeast. The Koji-fermented rice, known as "Koji-mai," is mixed with steamed rice and water, enabling the parallel fermentation of saccharification and alcohol production.

  • Miso, a fermented soybean paste, is another example of Koji's culinary influence. Koji is mixed with cooked soybeans and salt and then left to ferment for several months. The enzymes from Koji break down the proteins in soybeans into amino acids, creating a rich, umami flavor that is characteristic of miso.

  • Soy sauce, or "shoyu," is produced similarly. Koji is grown on a mixture of soybeans and roasted wheat, and then combined with a brine solution to form a mash called "moromi." The mixture is allowed to ferment for several months, during which the Koji enzymes break down the proteins and starches, resulting in a complex, savory liquid.

Koji's versatility extends to other Japanese food items, such as amazake (a sweet, non-alcoholic fermented rice drink), Shio Koji (a Koji-based seasoning), and pickles, showcasing its importance in shaping the unique flavors and textures of Japanese cuisine.

Sake brewing using koji in the Edo period



The Koji-Coffee Fusion

The innovative concept of integrating Koji into the coffee processing method stems from the idea of combining the rich tradition of Japanese fermentation techniques with modern coffee production. The Koji coffee fusion explores new possibilities in flavor enhancement and sustainability.

The Koji coffee process begins with inoculating Koji spores onto the coffee cherries or beans. The choice of using whole cherries or only beans depends on the desired flavor profile and the specific processing method employed.

Once the Koji spores are introduced, the coffee cherries or beans are placed in a controlled environment with optimal temperature and humidity levels. This environment facilitates the growth of Koji and the subsequent fermentation process, which can last from a few days to several weeks.

During fermentation, the enzymes produced by the Koji fungus act on the sugars, proteins, and lipids present in the coffee beans. This enzymatic activity leads to the breakdown of complex molecules into simpler compounds, such as amino acids, sugars, and fatty acids, which contribute to the unique flavor profile of Koji-processed coffee.

The Koji-coffee fusion also encourages the production of diverse organic acids and other volatile compounds. These compounds add to the coffee's overall aroma and flavor complexity and contribute to the enhanced fruity and umami notes that distinguish Koji-processed coffee from its counterparts.

studying Koji with the producer


The Future of Koji-Processed Coffee


As Koji-processed coffee gains recognition among coffee enthusiasts and professionals, it is poised to carve a niche in the coffee industry. The unique flavor profile and its potential environmental and sustainability benefits make it an attractive proposition for both consumers and producers.

Industry-wide adoption: As more coffee producers become aware of the potential advantages of Koji-processed coffee, its adoption is likely to grow. This could lead to increased availability of Koji-processed coffee in specialty coffee shops, restaurants, and retail stores, making it more accessible to consumers.

Overcoming scaling challenges: Scaling the production of Koji-processed coffee may face certain obstacles, such as maintaining consistent quality, ensuring the availability of Koji spores, and optimizing the fermentation process. Collaborative efforts among coffee producers, researchers, and Koji experts can help address these challenges and develop standardized practices.

Refining the technique: As the Koji-coffee fusion gains momentum, further research and experimentation can help refine the process. This could involve exploring different Koji strains, varying the fermentation duration, or experimenting with different coffee bean varieties and origins to unlock new flavor possibilities.

Encouraging innovation and research: The success of Koji-processed coffee could inspire further research into the potential applications of Koji and other fermentation techniques in the coffee industry. This could pave the way for even more innovations and contribute to the ongoing evolution of coffee processing methods.

In conclusion, the future of Koji-processed coffee holds great promise as it continues to gain traction in the coffee industry. By overcoming scaling challenges, refining the technique, and expanding consumer awareness, Koji-processed coffee has the potential to become a significant player in the specialty coffee market, offering unique experiences and flavors to coffee lovers worldwide.

Doing Koji Process with Colombian coffee producer

Embracing the Dawn of Koji Coffee

As Koji coffee processing gains momentum, it has revolutionized how we perceive coffee, enhancing its body and sweetness. However, the question remains: who owns the Koji process? While we should respect the inventors of the Koji process and the deep-rooted Japanese Koji culture, we must also consider its potential as a standard or specialized method of coffee processing.

Personally, I believe that Koji processing has become a standard for producing better-quality coffee. However, one significant challenge in making Koji coffee is the cost of Koji itself. To address this, I aim to create a place where Koji can be duplicated. Duplicating Koji is crucial, and after several meetings with Koji producers, it has become evident that the key to making exceptional sake or any other Koji-based products lies in the Koji-making process itself. For example, if Koji is duplicated at higher temperatures, the resulting fermentation process can yield a sweeter taste. Collaborating with Colombian coffee producers is essential, as their expertise in coffee production can help optimize the Koji-coffee fusion process, ultimately enhancing the quality and flavor of the final product.

If you want to join me in this endeavor, please reach out. I look forward to working with roasters, baristas, and coffee producers worldwide, especially in Colombia, where we can significantly impact the specialty coffee market by perfecting the Koji coffee fusion process.

Contact
eMail : haizcoffee@gmail.com

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