Summer is nigh upon us, and with the warmer weather brings the desire for crisp white wines such as Sauvignon Blanc.   I had the pleasure of tasting the crisp, refreshing 2012 Charles Krug Sauvignon Blanc as an aperitif before the spectacular 2014 Taste of Howell Mountain festival recently in Napa Valley.   Not only did this stellar Charles Krug Sav Blanc serve as a delicious way to prepare my palate for the world-class Howell Mountain Cabs that were featured at the festival, but it had the complexity and smooth finish to bring me back for just one more glass on the way out!   I have since purchased another bottle or three just to enjoy in the warmer weather down South.   The 2012 Charles Krug Sav Blanc contains a complex minerality that delightfully contrasts the honeysuckle, melon and classic grapefruit tastes on the mid-palate, finishing with a lingering, dry finish that reminds of a polished white Bordeaux.   Retailing for $18 but widely available at a nice discount, the 2012 Charles Krug Sav Blanc is that rare wine that is easily found but would be worth the search even if it weren’t.   The critics appear to be impressed as well.   Wine Enthusiast awarded this Sav Blanc an “Editor’s Choice” designation, calling the wine “a first-rate Sauvignon Blanc, delightful to drink now for its crisp fruitiness.”   If you happen to be visiting Napa Valley, make a point of touring the Charles Krug winery, considered to be the granddaddy of them all.   Hurry to grab the 2012 Charles Krug Sauvignon Blanc before it’s all gone!