Beverage Specialist Certificate Practice Test 2026 – Complete Exam Prep

The type of powdered mold used in sake production is known as Koji. This mold, specifically Aspergillus oryzae, plays a crucial role in converting starches from the rice into fermentable sugars, which is an essential part of the brewing process. The process of adding koji spores to steamed rice allows fermentation to occur, as the sugars created by the mold can then be utilized by yeast to produce alcohol.

Understanding the significance of koji in sake production is key for beverage specialists, as it not only enhances the flavor profile of the sake but also affects its aroma and texture. The careful cultivation and application of koji are vital for achieving the desired characteristics in the final product, making it a fundamental component in the art of sake brewing. The other options mentioned do not relate to the fermentation process of sake: maizen refers to corn, chicha is a traditional fermented beverage made from corn, and miso is a fermented soybean product.