Asamurasaki Kaki Shoyu (Oyster Soy Sauce) 150ml is a concentrated seasoning sauce built on umami extracted from fresh Hiroshima oysters, blended into naturally brewed (honjozo) soy sauce and rounded out with bonito and kelp dashi, mirin and sugar. The maker calls it a 高級濃厚つゆ — a rich concentrated tsuyu — and it is sold here in the cruet-style tabletop bottle that comes in a presentation box.
About Asamurasaki
Asamurasaki was founded on 26 November 1910 in Fukuyama, Hiroshima, as the soy-sauce maker Fujii Kunigoro Honten, and now works from Kasaoka in Okayama. Kaki shoyu is the company's signature product line.
What is kaki shoyu?
Kaki shoyu (かき醤油) is soy sauce infused with oyster extract — a Hiroshima speciality, and a different thing from Chinese-style oyster sauce, which is a thick, dark, sweetened paste. Kaki shoyu pours like soy sauce and is used like one, but carries a deeper, rounder savouriness from the shellfish and dashi worked into it.
How to use & enjoy
Asamurasaki gives three dilutions on the bottle: about 10–12 times water for udon, soba and chawanmushi; about 12–15 times for oden, hot pot and clear soups; and undiluted, in the same quantity you would use soy sauce, for simmered fish and vegetables. The maker suggests first-time users try it poured over tamago-kake-gohan (egg on hot rice). More broadly, a concentrated tsuyu of this kind is what noodle broth is made from, and is also used to season hot pot.
Ingredients
Soy sauce (produced in Japan), sugars (sugar-blended glucose-fructose syrup, sugar), salt, mirin, dried bonito flakes, oyster extract, hydrolysed vegetable protein, bonito extract, kelp extract, kelp, dried shiitake mushroom / seasoning (amino acids etc.), alcohol, acidity regulator.
Allergens
Contains: wheat, soybean, fish (bonito), mollusc (oyster).
Nutrition
Per 1 tablespoon (15 ml):
- Energy: 15 kcal
- Protein: 0.7 g
- Fat: 0 g
- Carbohydrate: 2.9 g
- Salt equivalent: 2.3 g
Important — please check the package label
While we make every effort to keep product information accurate and up to date, manufacturers may change formulations, packaging, allergens, ingredients, or specifications without notice. The actual product packaging is always the authoritative source. If you have specific concerns about allergens, ingredients, or any product detail, please contact us before purchase, or refer to the product packaging before consuming.
Hiroshima oyster umami in naturally brewed soy sauce · かき醤油卓上用化粧箱入り · Asamurasaki kaki shoyu range.
