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 cider waste left after pressing, known as pomace, is sold for cattle feed. Hot mulled cider, similar to "Wassail", is a popular autumn and winter beverage. Cider is heated to a temperature just below boiling, with cinnamon, orange peel, nutmeg, cloves, or other spices added. Authentic "sparkling cider" is a naturally carbonated beverage made from unfiltered apple cider. "Sparkling apple juice", often confused with it and sometimes even labeled as "sparkling cider", as does the popular Martinelli's brand, is filtered, pasteurized, and mechanically carbonated and thus not true cider. Rosé apple cider can be obtained using red-fleshed applecrabs. "Cider doughnuts" traditionally