Bitter is an English style of pale ale that varies in colour from gold to dark amber, and in strength typically from 3% to 5.5% alcohol by volume.
During the 20th century, bitter became the most popular type of draught beer sold in British pubs and has been described as "the national drink of England".
[2] In Scotland, bitter is known as either "light" or "heavy" depending on the strength, colour and body.
[3] It is similar to the India pale ale style of beer, though bitters are less hoppy.
A survey by SIBA found that in 2020 the average bitter beer strength in the UK was 4.2%.