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A view of Kumamoto (Aso, the Kusasenri plain)
Food Culture

Seasonings of Kumamoto

Add ash, and it keeps.

If you are visiting Aso and Kurokawa Onsen, this is the region you are in.

Aso, the Kusasenri plainPhoto: STA3816 / CC BY-SA 3.0

Recommended Items

Start with these 37 seasonings from Kumamoto in total

Zuiyo Tohi Akazake Cooking Sake (瑞鷹 東肥赤酒(料理用))
Kumamoto / Kumamoto & KawashiriMirin
Zuiyo Tohi Akazake Cooking Sake (瑞鷹 東肥赤酒(料理用))
「An amber sake carried on from the Hosokawa domain, with more gloss than mirin.」
¥1,703 / 1800ml
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Yamauchi Honten Maboroshi no Miso Rice & Barley Blend (山内本店 まぼろしの味噌 米麦あわせ)
Kumamoto / TamanaMisoNo additives
Yamauchi Honten Maboroshi no Miso Rice & Barley Blend (山内本店 まぼろしの味噌 米麦あわせ)
「Brewed with Aso spring water. A medium-sweet miso with no additives, from a master craftsman.」
¥788 / 500g
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Matsuai Tennen Jozo Kyushu Whole Soybean Shoyu (松合食品 天然醸造九州丸大豆しょうゆ)
Kumamoto / Uki & MatsuaiSoy sauceNaturally brewed
Matsuai Tennen Jozo Kyushu Whole Soybean Shoyu (松合食品 天然醸造九州丸大豆しょうゆ)
「In a white-walled port town, brewing without temperature control since 1827.」
¥1,340 / 900ml
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Kumamoto's akazake is an akumochi-zake, a sake finished by stirring wood ash into the moromi (the fermenting mash). Pushing the liquid toward alkaline stops it from spoiling. It is a way of preserving sake that has nothing to do with pasteurization.

Under the old domain it settled in as the sake drunk at New Year, and some households still use it for toso. It also happens to be an excellent cooking liquid: use it in place of mirin and dishes take on a gloss, and ingredients stay tender. A local drink that stayed on as a seasoning.

Where Kumamoto's sweetness comes from

Kumamoto seasonings run sweet across the board. Put its shoyu (soy sauce) or miso next to the Kanto equivalent and the sweetness is unmistakable. Kyushu is warm, sweet seasoning has long been the preference here, and the seasonings simply reflect that.

What sets Kumamoto apart within that is akazake. It is brewed almost exactly like sake, and the difference comes at the end, when wood ash is added. The ash is alkaline and neutralizes the acid in the sake, and in the process amino acids and sugars react and turn the liquid a reddish brown. Used in cooking, it gives gloss and depth and leaves ingredients soft. Kumamoto households still reach for akazake instead of mirin.

Akazake and toso

Akazake belongs to a category called akumochi-zake. Because the wood ash improves how long it keeps, it was a sensible way to brew in an age with no refrigeration.

In Kumamoto, akazake has long been poured as New Year toso and as offering sake. Households still drink it at the start of the year, so it is both a seasoning and a drink tied to the calendar. What is sold for cooking is this same akazake, adjusted for use in the kitchen.

Local dishes and their seasonings

Karashi Renkon (からし蓮根)
Lotus root with its holes packed with mustard miso, battered and fried. Pairing Kumamoto's sweeter miso with sharp mustard shows exactly how flavor gets built here.
Taipien (太平燕)
A Kumamoto noodle dish of glass noodles in soup with vegetables and seafood. It is seasoned lightly with shoyu or salt, which makes it a counterpoint in a region full of sweet dishes.

Makers in Kumamoto

4 more from Kumamoto

Stories from this area

What is clear shoyu? A shoyu with no color, and the line it shares with shirodashi and usukuchi
It looks like water and tastes like shoyu. Starting from "Toumei Shoyu" by Fundodai in Kumamoto, here is where the color of shoyu comes from, the line of thinking it shares with usukuchi shoyu and shirodashi, and the dishes it belongs on.
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Akazake and mirin, and how they differ: the ash-preserved sake that survived only in Kumamoto
How akazake, the local sake of Kumamoto, differs from mirin, looked at through the making, the chemistry and what it does to a finished dish. Includes how "akumochizake," preserved with wood ash instead of heat, works, and a bottle from Zuiyo, brewing since the days of the Hosokawa domain.
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Nearby prefectures

See all of Kyushu & Okinawa →