A fluent poem

It's a doggerel written by the son of Wu Zhuangyuan, one of the 233 champions in the Qing Dynasty, who sells bean jelly. Fried bean jelly is a traditional snack with white color, crystal clear, fresh and refreshing. There is a poem praising: ice scraping a fish is crystal clear and cold. Whether the taste is strong or weak, whatever you like, just cool it, and ignore the acid.