glasses of white wine in old wine domain on sauternes vineyards in barsac village and old castle on background, bordeaux, france

agriculture appellation background barsac bordeaux botrytis cinerea brommes castle chateau classification cultivation dessert wine domain france french sweet fungus garden grape graves great growth handpicked harvest house mature muscadelle noble rot old park plant preignac process raisin region row sauternes sauvignon blanc semillon soils sweetness unique vineyard white winery