aerial view, sauternes village, vineyards, making sweet dessert sauternes wines from semillon grapes with botrytis cinerea noble

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