Pink-skinned variety
Koshu
Japan’s signature variety — a thick-skinned pink grape making very light, delicate, low-alcohol dry white.
What is Koshu?
Koshu is pink-skinned but makes white wine, and its thick skins are the reason it survives a growing season that includes both the rainy season and the typhoons.
The wine is deliberately restrained: very light-bodied, 11% alcohol or less, with citrus and a faint bitterness and almost no aromatic intensity. That subtlety is the point and is also why it is hard to sell.
Its ancestry is partly non-European. Genetic analysis indicates a substantial Vitis vinifera component alongside a proportion of Vitis davidii, an East Asian species — which is unusual for a variety making serious wine.
A small proportion is made with brief skin contact, which adds texture and a light amber tint.
Japan, where it has been grown for around a thousand years. Genetic work indicates it is largely Vitis vinifera with a proportion of the East Asian species Vitis davidii.
The Vitis International Variety Catalogue, maintained by the Julius Kühn Institute, holds this variety as accession 6427 under the prime name KOSHU, with berry skin colour rose and country of origin japan. Checked 2026-08-17.
What it tastes like
This is the envelope across every expression of Koshu, not a description of one bottle. Wide ranges are the honest answer.
| Dimension | Typical | Range | Variation |
|---|---|---|---|
| Sweetness | low | Consistent | |
| Acidity | medium-plus | Some variation | |
| Alcohol | low-medium | Some variation | |
| Body | low-medium | Some variation | |
| Fruit intensity | low-medium | Some variation | |
| Aromatic intensity | low-medium | Some variation | |
| Oak influence | low | Consistent | |
| Savoury character | medium | Some variation | |
| Floral character | low | Consistent | |
| Herbal / green character | low | Consistent | |
| Spice | low | Consistent | |
| Earthy character | low | Consistent | |
| Perceived freshness | medium-plus | Some variation | |
| Texture | medium | Some variation |
Common flavours
What drives the style
- Thick skins and disease resistance, which is what makes it viable in a humid monsoon climate.
- Overhead pergola training, which lifts fruit into moving air and keeps yields moderate.
Wines made from it
The same grape in different places and different hands. These are where the wide ranges above resolve into something specific.
Where it grows
- Yamanashi — Japan
If you like Koshu, try…
Every suggestion says why it is connected and what will be different.
Closest matches
What is most like this?
Pinot Gris
In its Italian Pinot Grigio guise, the most useful reference for a very pale, delicate, low-aroma white built on texture rather than flavour.
Koshu is even lighter and more restrained, with a faint pink-grapefruit pith bitterness.
Chasselas
Another famously subtle white that rewards attention rather than announcing itself.
Chasselas is rounder and less citrus-edged.
Koshu
Both are made from koshu, and the structural profile is close across body, acidity and tannin, both come from the same country.
Expect it to be more oaky, and more fruit-driven.
Similar but lighter
Something like this, but lighter?
Mosel Riesling
They occupy similar territory for weight and structure.
Expect it to be sweeter, and more aromatic.
Kabinett
They occupy similar territory for weight and structure.
Expect it to be more aromatic, and more floral.
Jacquère
The structural profile is close across body, acidity and tannin.
Expect it to be fresher and more acidic, and stronger and warmer.
Similar but lower in alcohol
Something like this, but less alcoholic?
Hunter Valley Semillon
The structural profile is close across body, acidity and tannin.
Expect it to be fresher and more acidic, and fresher.
Mosel Riesling
They occupy similar territory for weight and structure.
Expect it to be sweeter, and more aromatic.
Kabinett
They occupy similar territory for weight and structure.
Expect it to be more aromatic, and more floral.
Similar but fuller
Something like this, but richer?
Xarel·lo
The structural profile is close across body, acidity and tannin.
Expect it to be more aromatic, and stronger and warmer.
Altesse
The structural profile is close across body, acidity and tannin.
Expect it to be more aromatic, and stronger and warmer.
Verdicchio
The structural profile is close across body, acidity and tannin.
Expect it to be more oaky, and more aromatic.
What to eat with it
Ranked by WineHQ's pairing engine, which reasons from the structure of the dish.
White fish
Works because low tannin avoids the metallic interaction with fish.
Cod
Works because low tannin avoids the metallic interaction with fish.
Fresh cheese
Works because a heavy wine would bury a delicate dish.
Sea bass
Works because low tannin avoids the metallic interaction with fish.
Tortilla española
Works because the dish is rich, and acidity cuts through fat and refreshes the palate.
Salmon
Works because the dish is rich, and acidity cuts through fat and refreshes the palate.
How to serve it
Temperature
9–12°C
48–54°F · Fridge cold
From a 20°C room, roughly two to three hours in the fridge, or about 20 minutes in a bucket of ice and water.
Decanting
No need to decant
Nothing about this wine suggests it needs decanting. Light, aromatic and sparkling wines generally lose more than they gain.
Glass
Universal wine glass
A medium tulip-shaped glass handles almost everything well. If you own one set of glasses, this is the set to own — the difference between a good universal glass and a grape-specific one is far smaller than the difference between a good glass and a bad one.
Ageing
Wines made from this grape are generally at their best within a few years.
Japan’s pink-skinned native, made in a deliberately delicate, low-alcohol style in Yamanashi. Subtlety is the whole character, and it does not survive keeping. A few producers use lees ageing or a little skin contact to add texture, which extends the window somewhat.
Compare
- Koshu vs Pinot Grigio — Both are pale, light and restrained, and Pinot Grigio is the reference point most people already have for that.
Sources
Sources consulted
- International Organisation of Vine and Wine (OIV) — OIV
- Vitis International Variety Catalogue (VIVC) — Julius Kühn-Institut, Institute for Grapevine Breeding Geilweilerhof