Perry a group of esters that affords them their prominent pear aroma. Another important attribute of perry pears that distinguishes them from cider apples is their relatively higher content ratio of sorbitol to other sugars, such as fructose. Because sorbitol is not readily fermented by yeast, it is not converted to ethanol, and perry therefore tends to have more residual sugar than cider produced from the fermentation of apples. In addition to producing a sweeter beverage, sorbitol also contributes to increased body and a softer mouthfeel in the finished perry. Compared to apples, pear pressing is made more difficult by the
Alcoholic drinks in China Cuisine, Fermented Beverages, and Health at the University of Pennsylvania Museum in Philadelphia. Professor McGovern explains: “The earliest chemically confirmed alcoholic beverage in the world was discovered at Jiahu in the Yellow River Valley of China (Henan province), ca. 7000-6600 B.C. (Early Neolithic Period). It was an extreme fermented beverage made of wild grapes (the earliest attested use), hawthorn, rice, and honey.” And, Professor McGovern continues: “The Jiahu discovery illustrates how you should never give up hope in finding chemical evidence for a fermented beverage from the Palaeolithic period. Research very often has big surprises in store. You might think,