And the higher the quality of the paper, the whiter it is, the more water is required. "It's just like washing clothes. You have to divide the pulp up into many stages as you wash it," explains Huang Shou-tsu, a senior project manager at the Yuen Foong Yu Paper Manufacturing Company.
尤其愈高級、愈白淨的紙，需水量愈大，「就像洗衣服一樣，要把濃濁的紙漿分成好幾段來篩洗」，永豐餘造紙公司高級專員黃修志指出。