5.6% acidity About The Taste: The Gravenstein Apple has played an important role in the history and culture of California’s western Sonoma Valley since the 1900s. By 1945 when plantings peaked, over 14,000 acres of the area were covered with Gravenstein apple trees. Unfortunately there are far fewer today with thousands of acres being replanted with grape vines. Slow Food has declared the Gravenstein apple to be a "Heritage" food that should be protected from further encroachment. The fruit has long been sought after by chefs for its elegant balance of sweet and tart flavors and its crisp flesh. It also makes the best cider around. Here is where our efforts come in.