 Family companies became national brands during the 19th century, many based in Burton-on-Trent which had particularly good water for brewing.By the 1970s brewing became concentrated in a handful of large national companies, which became building blocks of major multinationals such as AB InBev.A tax cut for small breweries in 2002 has seen an explosion of new breweries – there were over 1472 breweries in the UK, with three new breweries starting every week.