Applejack is a strong alcoholic beverage produced from apples, originating from the American colonial period. It is made by concentrating "hard cider" (as British cider, i.e., fermented apple juice, is called in American usage), either by the traditional method of so-called "freeze distillation" (see Fractional freezing), or by true evaporative distillation. The term "applejack" derives "jacking", used as a term for freeze distillation. Alcoholic beverages are drinks containing ethanol. Betsy Ross purportedly sewed the first American flag with 13 stars and 13 stripes representing each of the 13 colonies. Cider (also spelled: cyder) refers to a beverage containing the juice of apples. Fractional freezing is a process used by chemists to separate two liquids which have a different freezing point. Strathisla whisky distillery in Keith, Scotland Distillation is a means of separating liquids through differences in their boiling points. The Great Pyramids of Giza
From the fermented juice, with less that 10% alcohol content, the concentrated result has about or 30 to 40 percent alcohol (i.e., 60 to 80 proof), is slightly sweet, and tastes and usually smells of apples.
Freeze distilling can concentrate in applejack, to unhealthy levels, so called fusel alcohols, by-products of fermentation that true distillation reduces; in this light, many countries prohibit such applejack as a health measure. Fusel alcohols, also sometimes called fusel oils, are higher order (more than two carbons) alcohols formed by fermentation and present in cider, mead, beer, wine, and spirits to varying degrees.