Silky-smooth adzuki bean paste for authentic Japanese confections
Koshian (こしあん) is a traditional sweet red bean paste made by carefully simmering premium adzuki beans, then straining away the skins to produce a fine, smooth texture. The remaining bean starch is sweetened and simmered into a luscious, uniform paste that’s perfect for delicate dessert applications.
As one of the most classic forms of anko (あんこ)—the core filling used in both wagashi (Japanese sweets) and modern Japanese treats—koshian is known for its refined mouthfeel and subtle earthy sweetness. The name “koshian” literally means “strained bean paste,” setting it apart from its chunky counterpart, tsubuan.
Applications:
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Traditional wagashi such as manju, yokan, and daifuku
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Filling for dorayaki, taiyaki, or mochi
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Swirled into ice cream, sponge cake, or milk-based desserts
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Spread on toast with butter for a nostalgic Japanese-style treat
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Layered in parfaits or used in jelly-based sweets
Smooth and versatile, this ready-to-use red bean paste brings authentic Japanese flavour and texture to every creation.
Ingredients: Adzuki beans, sugar
Allergen Info: May contain traces of soy
Product of Japan
Gusta Supplies goes above and beyond to source specialty products for your gustatory enjoyment. Did you know? The stem "Gusta" is found in the word "gustation", which means the sense of taste. Gusta, as such, is literally the "root of taste". We know, shopping here, you must have a good taste!
Inventory Last Updated: Jun 13, 2026
