Beer produced before the Industrial Revolution continued to be made and sold on a domestic scale, although by the 7th century AD, beer was also being produced and sold by European monasteries.
During the Industrial Revolution, the production of beer moved from artisanal manufacture to industrial manufacture, and domestic manufacture ceased to be significant by the end of the 19th century.
Historically, the most famous of these was the Reinheitsgebot, which applied to parts of the Holy Roman Empire and Germany and required beer to be made from only water, hops, and barley.
Today in Canada, the Canadian Government’s Food and Drug Regulations state that beer must have alcohol content that ranges from 1.1% to 8.6%, though it also includes a stipulation that it could be greater than 8.6% and labeled accordingly.
As of 2006, more than 133 billion litres (35 billion gallons), the equivalent of a cube 510 metres on a side, of beer are sold per year, producing total global revenues of $294.5 billion (£147.7 billion).
In 2010, China's beer consumption hit 450 million hectolitres (45 billion litres), or nearly twice that of the United States, but only 5 per cent sold were premium draught beers, compared with 50 per cent in France and Germany. A dedicated building for the making of beer is called a brewery, though beer can be made in the home and has been for much of its history.
(The PPN is lasted from around 8500 BC to 5500 BC.) The earliest clear chemical evidence of barley beer dates to about 3500–3100 BC, from the site of Godin Tepe in the Zagros Mountains of western Iran.