The alcohol produced contributes to pigment extraction, and the longer the skins, pulp, and seeds are allowed to stay with the fermenting juice, the deeper the color becomes.

• 发酵产生的酒精有利于色素的萃取,而且表皮、果肉和种子在发酵的果汁中留存的时间越长,所得到的颜色就越深。