With respect to the Zenkoku Shinshu Kanpyokai, in the past, there was a period in which sake submitted by leaving color of sake as it was, was subjected to deduction of points and, therefore, breweries tried their best to eliminate the color of sake using active charcoal, etc.
しかし全国新酒鑑評会では過去に、色のついたまま出品されている酒は減点の対象としていた時代があり、それゆえ酒蔵では活性炭などで必死に色を抜いていた。