What is a unit?
An alcohol unit is defined as 10ml or 8g of pure alcohol. As alcoholic drinks come in various strengths and sizes, units are the only accurate way to measure how relatively strong a drink is and how it affects buyers.
According to the Drinkaware website, "it takes an average adult around an hour to process one unit of alcohol so that there's none left in their bloodstream, although it varies from person to person."
