Aji Mirin vs. Kotteri Mirin: Key Differences & Best Uses
Aji Mirin is a low-alcohol sweet seasoning labeled “aji-mirin” or “mirin-fu,” while Kotteri Mirin is a richer, syrupy, reduced mirin concentrate prized for gloss and deeper umami.
Both bottles sit side-by-side on the same shelf, sporting nearly identical amber liquid and Japanese characters, so home cooks grab whichever is cheaper—then wonder why one teriyaki turns out watery and the other sticky-sweet.
Key Differences
Aji Mirin has 1–2 % alcohol and added corn syrup; it seasons quickly but doesn’t caramelize. Kotteri Mirin retains 8–14 % alcohol and is condensed to 50 % sugar, creating the coveted lacquer shine and layered sweetness.
Which One Should You Choose?
Reach for Aji Mirin when you need a fast, everyday balance of sweet and salt—stir-fries, quick marinades. Choose Kotteri Mirin for finishing glazes, yakitori tare, and anywhere you want restaurant-level gloss and depth.
Can I substitute one for the other?
Yes, but adjust: use half the amount of Kotteri Mirin if a recipe calls for Aji Mirin, and add a splash of water if going the other way.
Do I need to refrigerate them?
Aji Mirin keeps fine in the pantry; Kotteri Mirin lasts longer in the fridge once opened due to its higher sugar content.