A general negative flavor term, from defectIn coffee, a defect refers to specific preparation problems with the green coffee, or a flavor problem found in the cupping process. Bad seeds in the green coffee... bean, bad roast, or bad brewing: Unpleasantly sharp, astringentAstringency is a harsh flavor sensation, acrid flavor, that provokes a physical reaction on the toungue, the tactile feeling of papery dryness. It can have saltiness, sourness and... or bitterBitterness is one of 5 basic tastes: Sour, Sweet, Salty, Bitter and Umami (savory flavors). There are many types of bitterness, hence not one avenue to tracking down... to the taste or smell
