Whether getting one to go or lingering over a second cup, on September 29 be sure to observe National Coffee Day! Ah, the perfect cup of java. According to an expert cupper, a professional coffee taster, there are four components of a perfect cup, aroma, body, acidity, and flavor. National Coffee Day is upon us. And while all the major chains seem to be getting in on the action, including Krispy Kreme, Dunkin’ Donuts, Cinnabon, Peet’s, and Canadian favorite Tim Horton’s. there is one heavy hitter that won’t appear on those, “where to get free coffee” lists.