Question: How can rot ever be noble?
Answer: Good point! Rot in grapes is generally not noble but a bad thing resulting in decomposition of unhealthy grapes. Grey rot is often still an issue and we remember well the widespread sour rot problems in the Okanagan especially during the 2013 & 2004 vintages. However, healthy ripe grapes in hot misty conditions may be attacked by the fungus botrytis cinerea (particularly in Sauternes, Tokaj, Germany and other unique regions) miraculously turning the individual berries into raisins and concentrating their juice – a noble rot indeed!
You might also like: