(TheDrinksBusiness) - Which game-changing women hold the most power in the wine world today? The fact that there are enough powerful women working in wine to warrant a top 50 is a sign of how far the industry has come in a short space of time. Since Sarah Morphew Stephen became the first female Master of Wine in 1970, the pace of change has been rapid. Entrants on our list range from 33 to 80 years old, spread evenly between the Old and New World, proving equal opportunities aren’t the sole preserve of the more forward-thinking regions like California.