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
At Gusta Supplies, we endeavour to secure hard-to-source ingredients and tools so the community here can enjoy a tasteful selection. We are particular about the origin of these products in respect to its cultural and technological significance. We want you to use only the best we can afford to provide.
Inventory Last Updated: Jul 12, 2025
