Posted on March 9, 2009March 30, 2019 by Judi Scherrer How do winemakers know when to pick their grapes? Winemaker Fred Scherrer discusses how he determines when grapes are ripe and ready to pick in response to a question posed by Jessica Bell of the Midwest Wine School. Post navigationPrevious post: What is reductive winemaking and what role do lees play?Next post: Do labels help to sell wine?