Nebbiolo grapes are grown primarily in the Piedmont region of Italy where they can produce great wines; outside of Piedmont, though, the grapes produce mediocre wines at best. Nebbiolo has complex flavors and aromas, including roses, cherries, truffles, and mints. There can even be hints of tar, tobacco, and leather. Other characteristics of wine made from Nebbiolo grapes include high tannins, high acidity, and high alcohol content. Nebbiolo wines take on orange tinges when they are aged.