Low Alcohol Beer is also commonly known as Non Alcohol (NA) beer, which is a fallacy as all of these beers still contain small amounts of alcohol. Low Alcohol Beers are generally subjected to one of two things: a controlled brewing process that results in a low alcohol content, or the alcohol is removed using a reverse-osmosis method which passes alcohol through a permeable membrane.
Very light on aroma, body, and flavor.
Average alcohol by volume (abv) range: 0.1-1.0% --BeerAdvocate
