Hard seltzer

Hard seltzer, adult seltzer, mature seltzer, spiked seltzer and hard sparkling alcohol water is a type of highball drink containing seltzer, alcohol, and often fruit flavorings. In the US the alcohol is usually made by fermenting cane sugar or malted barley. Hard seltzer products outside of the US often use either neutral spirit, or fermentation of fruit. The alcohol by volume is around 5% and the calorie-content is relatively low, derived almost entirely from fructose.