Why do some wines cost over $100 and some just $15? What is sustainable farming with respect to wine? What is the good soil composition for growing wine grapes? What are the grape varieties? How will climate change affect wineries? Can you actually smell or taste “tar, cat piss, and canvas shoes” when you swirl a glass of wine? Speaking of which, why should you swirl a wine glass? What is the chemistry and physics of wine tasting?Listen to an IIT engineer, Deepak Gulrajani unpack the mysteries of wine. So go ahead, open a bottle of wine and sit back to listen to Deepak explain how to choose, buy and enjoy wine.