一、滋味：首先要看茶饮料产品的风味是否突出，是否保持了原有茶叶的浓郁风味。如绿茶产品必须有典型的清香风味，乌龙茶应有半发酵的风味。对于没有茶味的茶饮料一般不要选购。二、色泽：茶饮料产品中的茶汤变色是由于茶叶中的单宁物质极易被氧化，随着时间的延长茶色会... First, the taste: First of all look at the flavor of tea drinks products are outstanding, whether to maintain the original rich flavor of tea. Such as green tea products must have a typical fragrance flavor, oolong tea should be semi-fermented flavor. For tea drinks without tea flavor generally do not buy. Second, the color: tea beverage products in the tea discoloration is due to the tannin in tea is easily oxidized, with the extension of time brown will ...