Hard Cider
Still wine derived primarily from apples or apple concentrate and water (apple juice, or the equivalent amount of concentrate reconstituted to the original brix of the juice prior to concentration, must represent more than 50 percent of the volume of the finished product) containing no other fruit product nor any artificial product which imparts a fruit flavor other than apple; containing at least one-half of one percent (0.5%) and less than seven percent alcohol by volume; having the taste, aroma, and characteristics generally attributed to hard cider; and sold or offered for sale as hard cider.

High-proof concentrate
For wine:  A volatile fruit-flavor concentrate (essence) that has an alcohol content of more than 24 percent by volume and is unfit for beverage use (nonpotable) because of its natural constituents, i.e., without the addition of other substances.