If you've ever heard that sommeliers lick rocks, it's not a joke. Why, you may ask? It's because the type and quality of the soil in which grapes are grown hugely impacts the final wine. For example, grapes grown in sandy soil create wine that is elegant, soft, and pale, whereas grapes grown in clay soil tend to producer wine that is bolder, muscular, and darker in color. I never really believed it...until recently. During a meal at Blue Hill Stone Barns, the sommelier handed me three glasses of Muscadet wine made from the same exact grape on the very same vineyard. The only difference was that the grapes were grown in three different types of soil — namely: granite, gneiss, and orthogneiss. Bullshit, I thought, before taking a sip of each. To my utter surprise, the three wines tasted so different I couldn't believe I was tasting the same grape, let alone from the same piece of land.