Colors Cosmos Spark
⏳ Drinking Window
Typically best enjoyed fresh, within 1–2 years of the bottling release to fully appreciate its vibrant effervescence and delicate aromatics.
🍽️ Food & Wine Pairings
raw oysters, light tempura, fresh goat cheese
✨ Technical Specifications
Aramasa's 'Colors' series is an avant-garde homage to the agricultural heritage of Akita Prefecture, with each release showcasing a specific local heirloom rice variety. The 'Cosmos' bottling, named after the autumn cherry blossom, is dedicated to the Akita Sake Komachi rice strain. In its rare 'Spark' incarnation, this sake undergoes a natural secondary fermentation in the bottle to create a delicate, persistent effervescence. True to Aramasa's strict brewing philosophy, it is crafted using the traditional Kimoto starter method, brewed in wooden casks (kioke), and fermented exclusively with the historic Kyokai No. 6 yeast, which was originally isolated at the Aramasa brewery in 1930. The result is a highly sophisticated sparkling sake that marries vibrant, wine-like lactic acidity with the gentle sweetness of Akita Sake Komachi, all elevated by a fine, refreshing mousse.
🍾 About the Producer
Established in 1852 by Uhei Sato in Akita Prefecture, Aramasa Shuzo stands as one of Japan's most revolutionary and revered artisanal producers. The brewery earned historic distinction in 1930 when its in-house culture was isolated as Kyokai No. 6, the oldest surviving yeast strain in active distribution. Under eighth-generation kuramoto Yusuke Sato, who took over in the late 2000s, Aramasa embarked on an uncompromising renaissance. Sato committed strictly to pure Junmai brewing, utilizing exclusively local Akita-grown rice cultivated without chemical pesticides, including over 30 hectares farmed in the Uyashinai district. Reviving traditional Edo-period techniques, all fermentations rely purely on indigenous lactic bacteria via the kimoto method and take place entirely in wooden cedar vats (kioke). Fermented using only pristine soft local mountain water and Kyokai No. 6, Aramasa's sakes—such as the iconic unpasteurized No. 6 series, the terroir-driven Colors collection, and the experimental Private Lab bottlings like Amaneko—are globally benchmarked for their electrifying acidity, pristine structural tension, and vinous elegance.