Cider apple
Cider is made in several countries and can be made from any apples. Historically the flavours preferred and varieties used to produce cider have varied by region. Many of the most traditional apple varieties used for ciders come from or are derived from those from Devon, Somerset and Herefordshire in England, Normandy in France, and Asturias in Spain, and these areas are considered to have their own broad cider styles although the many exceptions make this more of a historic footnote. Normandy cider is usually naturally carbonated and clear: Asturian cider apple varieties are mainly 'sharps' or mild 'bittersweets', producing a mildly acidic cider which is customarily served by being poured from height into the glass to oxygenate it.
Cider in the United Kingdom
The Campaign for Real Ale (CAMRA) defines "real" cider as a product containing at least 90% fresh apple juice, with no added flavourings or colourings. Their definition prohibits the use of apple and pear concentrates, and prohibits substantial chaptalisation of the juice (adding sugar prior to fermentation) except in years when the level of natural sugar in the fruit is low. They allow the addition of sweetener for taste after fermentation, and allow limited dilution after fermentation. CAMRA states that the practice of adding a substantial amount of sugar at the fermentation stage to produce a high-alcohol (12–14% abv) beverage that is then diluted with water down to 8.5% abv or less does not conform to their definition of real cider. Some traditional cider enthusiasts consider this requirement is insufficiently strict and prefer ciders made wholly from apple juice, using apple peel as the source of yeasts.