Koshu is one of Japan’s grape varieties of which the country can be truly proud.
This white grape produces high-quality wines with finesse and has earned strong international recognition.
This time, we focus on two characteristic elements of Koshu: “Japanese citrus aromas” and “bitterness.” Using those two traits as key pairing points, we introduce dishes that work well with Koshu.
The recipes were created by culinary expert Kinuko Oda specifically to complement Koshu’s Japanese citrus character and subtle bitterness.
What Are Koshu’s “Japanese Citrus Aromas” and “Bitterness”?
Koshu is a gris-type white grape whose skins turn a pale wisteria-purple when fully ripe.
Because it is also eaten as a table grape, it is sometimes mistakenly associated with Vitis labrusca, the American grape group known for grape-juice-like aromas. In fact, Koshu is Vitis vinifera, the European species that includes Chardonnay and Sauvignon Blanc.
Koshu was once criticized for producing weakly aromatic, watery wines. Advances in viticulture and winemaking designed to draw out the grape’s full potential, however, have transformed it into a variety capable of producing wines that can stand alongside top wines from around the world.
Two traits frequently mentioned when tasting Koshu are its “Japanese citrus aromas” and “bitterness.”
Researchers have found that Koshu contains various thiol compounds also present in Sauvignon Blanc. Alongside grapefruit-like aromas, the wine can show scents reminiscent of Japanese citrus such as kabosu and sudachi.
Koshu also tends to have somewhat thicker skins as a gris variety. Combined with its varietal characteristics, that makes it more susceptible than many ordinary white grapes to the influence of polyphenols and related compounds, often leaving a faint bitterness on the finish.
These elements help define Koshu’s individuality. Rather than treating them simply as tasting descriptors, it can be especially rewarding to use them actively in food pairing.
Recommended Recipes for Koshu
When thinking about pairing wine with food, the chances of success often rise if you look for shared aromas, flavors, textures, or other common points.
For these recipes, we focused on Koshu’s “Japanese citrus aromas” and “bitterness.”
Here are culinary expert Kinuko Oda’s recommended recipes for pairing with Koshu.
Horse Mackerel and Watercress with Sudachi
- Ingredients — Serves 2
Horse mackerel, sashimi-grade … 1 fish
Myoga ginger … 1
Watercress … 1 bunch
Sashimi garnish, roughly cut … as needed
Sudachi … 1; soy sauce … 2 tsp
Sesame oil … 1 tbsp
White sesame seeds … 2 tsp
- Method
- Fillet the horse mackerel into three sections, remove the skin, and slice thinly.
- Slice the myoga into thin rounds. Finely chop the watercress stems and cut the leaves into 2 cm pieces. Thinly slice half of the sudachi, then cut each slice into eight pieces.
- Place the horse mackerel, myoga, watercress, and sudachi in a bowl. Add soy sauce, sesame oil, and white sesame seeds, and toss gently.
- Arrange on a plate and squeeze over the remaining sudachi.
- Point
★Horse mackerel brings a seasonal touch. Sudachi is used as the Japanese citrus component because even the bitterness from its peel is gentle. Watercress, which is particularly delicious around May, myoga, and the shredded vegetables commonly served with sashimi add the pleasant bitterness of spring vegetables. Seasoned with sesame oil, soy sauce, and sudachi juice, the dish balances acidity and bitterness beautifully.
- Pairing
★The soft acidity of sudachi harmonizes naturally with Koshu’s citrus aromas. The bitterness of the spring vegetables and the lingering Japanese-citrus flavor also fit well with Koshu’s refreshing acidity and faint bitter finish. Sesame oil softens the horse mackerel and makes the pairing even more seamless. Watercress works especially well with Koshu’s bitterness, so experimenting with it in other dishes could be interesting too.
Sansho Chicken with Amanatsu and Nanohana Salad
- Ingredients — Serves 2
Chicken thigh … 1
Amanatsu citrus … 1/2
Nanohana greens … 1/2 bunch
Seasoning
Salt … to taste
Sake … 2 tsp
Ground sansho … to taste
Black pepper and olive oil … to taste
- Method
- Cut the chicken thigh into bite-sized pieces, season with salt and sake, and leave for 10 minutes.
- Pan-fry skin-side down until well browned, then sprinkle with ground sansho.
- Remove the amanatsu segments from their membranes and cut in half. Boil the nanohana briefly in salted water and cut into 2 cm pieces.
- Lightly toss the amanatsu and nanohana with olive oil.
- Arrange the chicken on a plate and serve with the salad from step 4.
- Point
★The chicken thigh is scented with ground sansho. The amanatsu is used as-is and tossed with nanohana and olive oil before being served alongside the chicken. The sweetness and acidity of amanatsu work beautifully with the spring-like bitterness of nanohana.
- Pairing
★The fresh aroma of amanatsu and Koshu’s Japanese-citrus character make a pairing that feels nearly perfect. Their refreshing acidity is also well balanced, while the bitterness of nanohana harmonizes on the finish. Add the spicy scent of sansho and the savory chicken, and Koshu’s umami becomes even more expansive.
Conclusion
Wine-and-food pairing can seem difficult, but simply treating a wine’s defining characteristics as keywords can greatly improve the odds of success.
With Koshu’s “Japanese citrus aromas” and “bitterness,” making those characteristics the stars of the pairing allowed both the wine and dishes to show at their best.
Use these examples as inspiration and try creating your own pairings around Koshu’s Japanese-citrus character and subtle bitterness.
Reference
Culinary Expert / Molecular Nutrition Advisor
Olive Oil Sommelier
Kinuko Oda
As a culinary expert and olive oil sommelier, Oda has created numerous tapas and home-style dishes designed to highlight the individual character of wine.
She currently focuses on small-group events centered on wine and tapas.
Rather than complicated theory, she values food that can be recreated at home and is “genuinely delicious,” explaining the pleasures of wine in accessible language for beginners.
Drawing on molecular nutrition, she is also known for practical ideas that help people care for their bodies while enjoying wine, and for proposing “wine time that leaves both mind and body feeling lighter” for adult audiences.
★ Cooking Class Information
https://ryo-ri.net/course00/course1/