Brown ale term "brown ale" was revived at the end of the 19th century when London brewer Mann introduced a beer with that name. However, the style only became widely brewed in the 1920s. The brown ales of this period were considerably stronger than most modern English versions. In 1926, Manns Brown Ale had an original gravity of 1.043 and an ABV of around 4%. Whitbread Double Brown was even stronger, an OG of 1.054 and more than 5% ABV. The introduction of these beers coincided with a big increase in demand for bottled beer in the UK. In the 1930s some
Burton Ale Ale was brewed by collecting the first and richest wort and fermenting it separately to make strong ale... [It] would have been brewed from malt paler than the brown high-dried malt used for porter, but one that was still much darker than modern pale ale malts." It was "the original dark, rather sweet beer the brewers of Burton upon Trent made and exported to Russia before they started brewing even paler, bitterer India Pale Ales in the 1820s". "Burtons vary in flavour, some are quite strongly hopped, others retain the bitter-sweet flavour of mild beer." Burton Ales were generally aged