What Is Suimono? Japanese Clear Soup Explained
Oct 04, 2026
Suimono (吸い物), often called osuimono (お吸い物), is a Japanese clear soup built around lightly seasoned dashi. The broth is usually delicate rather than strongly flavoured, with a small number of ingredients chosen for taste, texture, aroma and season.
In English, “Japanese clear soup” is a useful translation. The key idea is not that the liquid must be perfectly colourless, but that the broth remains light and clear enough for the flavour of the dashi and ingredients to stay distinct.
What does suimono mean?
Suimono means a soup to sip or drink. In ordinary food language, osuimono is a polite form of the same word.
You may also see sumashijiru or sumashi-jiru, which literally points to a clear or clarified soup. In real use, these terms overlap strongly and should not be forced into a rigid hierarchy.
What is osuimono made from?
A classic osuimono starts with dashi and is seasoned lightly with salt, soy sauce and sometimes sake or mirin. The exact balance varies by household, restaurant and ingredient.
Kombu-and-katsuobushi dashi is common, but other stocks are also used. MAFF regional cuisine records clear soups made from combinations including bonito, kombu, sardines, pork or shiitake depending on the dish.
Why is the seasoning so light?
The broth is meant to let the dashi and main ingredients remain easy to taste. Heavy seasoning would hide the aroma of a delicate stock, mushroom, fish or seasonal garnish.
Kikkoman’s washoku guide describes osuimono as a soup that highlights kombu and katsuobushi dashi, finished with only a small amount of soy sauce or other seasoning.
What ingredients go into suimono?
Tofu, fish, shellfish, mushrooms, vegetables and seasonal greens can all appear. One soup may use only two or three visible ingredients.
Examples include tofu with mushrooms and mitsuba, matsutake with chicken, clam soup, or regional clear soups built around local fish and vegetables.
What is wan-dane?
Wan-dane is the main solid ingredient placed in the soup bowl. It might be tofu, fish, shrimp, a dumpling, mushroom or another central ingredient.
The soup can then be supported by smaller secondary ingredients and an aromatic finishing garnish.
What is suikuchi?
Suikuchi (吸い口) is an aromatic finishing garnish used in clear soup. Yuzu peel, sansho buds, mitsuba, myoga or shiso are examples.
The purpose is fragrance as much as appearance. Seasonal suikuchi can make the first aroma from a lidded bowl part of the experience.
Why is osuimono often served in a lidded bowl?
A lid helps keep the soup hot and holds aroma until the diner opens the bowl. Kikkoman specifically notes that lidded bowls are common in restaurants because the aroma of dashi rises when the lid is removed.
For the vessel vocabulary, see our Futamono guide.
How is suimono different from miso soup?
Suimono is a clear, lightly seasoned dashi-based soup; miso soup is seasoned with miso paste and is usually cloudier and richer in colour and body.
Both can contain tofu, mushrooms, seaweed or vegetables. The seasoning base is the main distinction.
How is suimono different from sumashijiru?
In everyday use, the terms overlap heavily. Sumashijiru literally means clear soup, while suimono or osuimono is the broader dining term often used for a refined clear soup.
Rather than treating them as completely separate dishes, it is more useful to see them as neighbouring terms whose use changes with context and speaker.
Is zōni a suimono?
Sometimes. Zōni is the New Year soup containing mochi, but its broth differs by region and household.
MAFF records many zōni made with sumashi-jiru clear broth, while other regions use miso. So zōni can use a clear-soup base without becoming synonymous with suimono.
Is suimono part of kaiseki?
Clear soup can appear as a distinct course in kaiseki-style dining, but the exact course name and position vary. Formal Japanese menus often use a lidded soup bowl for a carefully composed clear soup.
Do not treat one restaurant’s sequence as universal. See Kaiseki vs Kaiseki for the difference between major kaiseki contexts.
What makes a good clear broth?
Good dashi, controlled heat and restrained seasoning matter more than adding many ingredients. Overboiling kombu can make the aroma too strong, while vigorous boiling after adding delicate ingredients can damage texture or cloud the broth.
A clear soup should taste deliberate even when the ingredient list is short.
Does suimono have to be completely transparent?
No. “Clear soup” means the broth is light and not thickened or made opaque by ingredients such as miso, not that it must look like water.
Dashi, soy sauce and ingredients naturally give the soup some colour.
Why are the ingredients arranged before the broth is poured?
Placing the solids first gives the cook control over how the bowl looks when served. The broth can then be poured gently around them instead of scattering the arrangement.
Kikkoman’s osuimono method follows this sequence: arrange tofu, mushrooms and mitsuba in the bowl, then pour in the soup.
What bowl is used for suimono?
A small or medium soup bowl, often lacquered and lidded in formal settings, is traditional. Ceramic bowls are also used depending on the meal.
See Japanese Soup Bowls for common bowl forms and serving logic.
Is suimono everyday food or formal food?
Both. Clear soups can be simple home cooking, regional food, celebratory dishes or part of formal restaurant meals.
The ingredients and presentation change with the setting; the basic idea of a lightly seasoned clear broth remains.
Does seasonality matter?
Yes, especially through the main ingredient and the aromatic garnish. Matsutake in autumn or yuzu peel in winter can make the season clear without adding decorative explanation.
See Seasonality at the Japanese Table.
Suimono in one sentence
Suimono, or osuimono, is a Japanese clear soup built around lightly seasoned dashi, a few carefully chosen ingredients and often a seasonal aromatic garnish.
Where to go next
Continue with Japanese Soup Bowls, Futamono, Kaiseki vs Kaiseki, or the main Japanese Table guide.
For more close-up explanations of Japanese food and dining, visit Japan in Detail.
