Joe Cillo of Cleveland Ohio asks “what is the difference between a horizontal and a vertical wine tasting?”.  W ell Joe I know that for someone like you a horizontal tasting is the portion of a tasting after you have had too much to taste. But for others a horizontal tasting compares wines from the same year but from multiple producers. For example at a horizontal tasting you may taste nothing but 2005 Cabernet Sauvignon from Bogle, Kunde, BV, Grgich Hills, and Joel Gott.   That way, in comparing the wines, you get a better understanding of the wine style of that particular producer, and you can then decide which producers match your taste.    A vertical tasting involves wine from the same producer but from different years.  For example a vertical tasting may consist Ravenswood Zinfandel from 2008, 2009, 2010, 2011, and 2012.  That way you get a better understanding of the each vintage in order to better understand the vintage that best fits your t...