Cider (/ˈsaɪdər/ SY-dər) is an alcoholic beverage made from the fermented juice of apples. In the US, as well as some parts of Canada,  cider  refers to unfiltered apple juice, traditionally made with a distinct sweet-tart taste, and in these regions the fermented beverage is known as hard cider.n France, cider must be made solely from apples. In 2014, a study by The Daily Telegraph found that a pint of mass-market cider (Bulmers) contained five teaspoons (20.5 g) of sugar, nearly as much as the WHO recommends as an adult's daily allowance of added sugar, and 5–10 times the amount of sugar in lager or ale.