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
Apple juice the United Kingdom, the simple term cider refers to fermented fruit juice, usually made from apples but also from pears; this alcoholic beverage is known as "hard cider" in much of North America. Because apple juice is acidic, typically with a pH of 3.4, it can be pasteurized for less time or at lower temperatures than many other juices. For this purpose, the U.S. Food and Drug Administration recommends the following thermal processing times and temperatures in order to achieve a 5-log reduction of Cryptosporidium parvum as this parasite is more heat resistant than E.coli 0157: From 2000 to 2010