Perry Perry Perry is an alcoholic beverage made from fermented pears, similar to the way cider is made from apples. It has been common for centuries in England, particularly in the Three Counties (Gloucestershire, Herefordshire and Worcestershire); it is also made in parts of South Wales and France, especially Normandy and Anjou. In more recent years, commercial perry has also been referred to as "pear cider", but some organisations (such as CAMRA) do not accept this as a name for the traditional drink. The National Association of Cider Makers, on the other hand, disagrees, insisting that the terms perry and pear
Gravity (alcoholic beverage) Gravity (alcoholic beverage) Gravity, in the context of fermenting alcoholic beverages, refers to the specific gravity, or relative density compared to water, of the wort or must at various stages in the fermentation. The concept is used in the brewing and wine-making industries. Specific gravity is measured by a hydrometer, refractometer, pycnometer or oscillating U-tube electronic meter. The density of a wort is largely dependent on the sugar content of the wort. During alcohol fermentation, yeast converts sugars into carbon dioxide and alcohol. The decline in the sugar content "and" the presence of ethanol (which is appreciably less dense than