John Kroupa is the managing partner for Peninsula Cellars. John has been involved in the business since it started in 1994. Originally working in the vineyards and orchards as a child, John moved into the cellar after graduating with honors from Michigan State University in 1998 with a degree in Horticulture. After handling the lead winemaker responsibilities from 2007 to 2013, John now focuses on the hard cider program and managing the many diverse facets of the Kroupa family business. John lives with his wife and three children on Old Mission Peninsula.
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