Iinuma Meijo is a Japanese sake brewery that produces traditional rice-based alcoholic beverages. Like many sake producers in Japan, they focus on the careful fermentation of polished rice using koji mold and yeast to create their products.

The brewery produces junmai daiginjo, one of the premium categories of sake that requires rice to be polished to at least 50% of its original size, removing the outer layers that can contribute harsh flavors. This polishing process, combined with the use of only rice, water, yeast, and koji without added alcohol, results in sake with refined, delicate characteristics. Junmai daiginjo typically exhibits clean, fruity, and floral notes with a smooth texture.

Their current offering includes the Sugata junmai daiginjo, representing their approach to this premium sake style that emphasizes purity of ingredients and meticulous brewing techniques.