Why does an apple taste sweet yet cider is naturally dry?
To make cider the apples are milled, i.e. reduced to small pieces, and then pressed to release the juice. Using the natural yeast, which covers the apple skin (or introduced yeast) and the sugars contained within the juice, fermentation takes place. Once fermentation is completed the sweet sugars have been converted into alcohol leaving a dry product. Cider can then be sweetened by using unfermented apple juice or artificial sweeteners.