Botrytized grapes

Botrytized grapes meaning in wine

Botrytized grapes are grapes that have been infected by Botrytis cinerea, a beneficial fungus commonly known as “noble rot.” This fungus develops under specific climatic conditions—typically warm, humid mornings followed by dry afternoons—creating microscopic perforations in the grape skin that allow water to evaporate while concentrating sugars, acids, and flavor compounds. The process can increase sugar levels from normal ripeness of 20-25° Brix to 35-40° Brix or higher, resulting in grapes with extraordinary sweetness and complexity. The fungus imparts distinctive flavors including honey, apricot, orange marmalade, and spice notes. Sémillon, Riesling, Chenin Blanc, and Gewürztraminer are grape varieties particularly susceptible to beneficial botrytis infection. Famous botrytized wines include Sauternes from Bordeaux, German Trockenbeerenauslese, and Hungarian Tokaji. The infection process is unpredictable and labor-intensive, as grapes must be hand-harvested in multiple passes (tries) to select only properly affected berries. This selectivity, combined with dramatically reduced yields—often 80-90% less than normal harvest—makes botrytized wines among the world’s most expensive and prized dessert wines, capable of aging for decades while developing extraordinary complexity.