Vin gris is a white wine made from red grape varieties, particularly Pinot Noir. Pinot Noir is a red grape variety, but it can also be used to make ros é and white wine. When red grapes are transported to a winery and crushed, the grape juice will detach from the grape skins and flow out. Grape juice is often fermented in stainless steel containers and can be bottled directly without aging in oak barrels.
Producing a small amount of grey wine (or ros é wine) can improve the quality of Pinot Noir. Removing some clean grape juice can increase the concentration of grape skin pigments and flavor compounds, and the extracted grape juice can be used to make red wine, which is ultimately known as Saignee.
Another grape used to make grey wine is Gamay, especially from Lorraine, France, where the Cotes de Toul region produces light but pleasant grey wines. The method of brewing with Jiamei grapes is the same as that of brewing with Pinot Noir (shortening the contact time between white grape juice and red grape skins during the pressing process). Although the brewing method is similar, the fruit flavor of Jiamei grapes greatly changes the taste of the wine.
Champagne is often brewed using the aforementioned method, also known as "black white" Champagne, which is a white wine made entirely from red grapes. Moshofilero is a native grape variety in Greece, with pink or purple grape skins and white flesh, and gives the white medium gray wine the name "Mantineia" as its place of origin.
Therefore, generally speaking, red wine is made from red grapes, while white wine is made from white grapes. However, sometimes red grapes can also be used to make white wine, such as gray wine, 'black medium white' champagne, etc.
