Grapes naturally exist in three forms: solid, liquid, and raisin. Imbibe the fruit's most drinkable state with today's Groupon: for $25, you get a two-hour wine class at Dreadnought Wines (a $55 value). Choose from the following six class options:

• Animal Wine on March 10
• What Not to Drink on March 22
• Real Men Drink Rosé on April 13
• Strange Fruit on April 29
• Caliente & Popular on May 13
• Cal-Ital on May 31

A boutique wine distributor helmed by knowledgeable sommeliers, Dreadnought Wines offers a carefully hewn selection of fine wines alongside informative grape-sipping classes. Each two-hour course, capped at 33 tipplers, promises a wealth of vinous knowledge, artisan bread, and palate-complementing cheese to pair with various varietals.

Animal Wine addresses the idea of basing a wine purchase on the adorable or ferocious animal its label bears, using three red and three white wines to address challenging questions such as, "Is picking a wine by its label a good thing?" and "Does drinking wine from a plastic cup impugn my dignity?" What Not to Drink covers the delicate art of serving wine with food; participants will learn about common matching missteps and pairing pitfalls, and will whip up snacks to demonstrate the pros and cons of comestible couplings. Join in the booming rosé trend in Real Men Drink Rosé, which offers pink-hued elixirs from France, Italy, and California, or dip into more obscure, but equally pleasing bottles with the Strange Fruits class.

Caliente & Popular pits chainsaw-bearing Chilean wines against army-accoutered Argentinean wines with small snack peacemakers mediating discussions about the origins of malbec, bonarda, and more. Explore the subtleties of Italian grapes grown in California versus Californian varietals sprung from the Italian terra in the Cal-Ital class. Postclass participants will observe an upswing in dinner-party attendance, school-board election victories, and hate mail postmarked from the grape-juice aisle.