Duan, an expert on fermentation but a novice at the beer game, began reading up on the subject, gathering data, and visiting beer facilities abroad. He also obtained simple brewing equipment suitable for conducting repeated experiments.
專長在「發酵」卻是啤酒門外漢的段國仁，乃開始搜羅資料、看書、參觀國外啤酒廠，也引進一套簡單的釀製機器反覆試驗。