Botrytis
/boh-TRY-tis/Noble rot fungus that concentrates sugars for sweet wines.
Full Definition
Botrytis cinerea ('noble rot') is a beneficial fungus that dehydrates grapes, concentrating sugars and adding honey, apricot, and ginger flavors. Essential for Sauternes, Tokaji, and Trockenbeerenauslese. Requires specific conditions: morning fog, afternoon sun. Grey rot (same fungus in wrong conditions) destroys crops.