Lan Fangren admits that some tea farmers, amid their pursuit of the distinctive creamy bouquet, would add artificial flavorings during processing to cover up poor-quality or improperly roasted leaves, giving the tea an unnatural aroma. This is one of the reasons why the price of Ming-jian Township oolong tea kept falling.
名間鄉農會總幹事藍芳仁坦承，多年來，茶農一味追求「奶香」，當茶葉品質不佳或烘焙不當而失去香氣時，部分茶農只好在製茶時添加人工香料，導致香氣不自然，這也是名間鄉烏龍茶價節節衰退的原因之一。