The brewer begins with malted barley or another grain cereal. Malted barley is dried, sprouted or germinated barley which the brewer grinds and then heats with warm water, which converts the starches to sugars.
The actual brewing process takes place in two distinct phases, going first from warm to hot and then from cool to cold. Besides sanitation, heating and boiling also helps to prepare all the sugars and proteins for proper fermentation, creating a number of the good flavors in beer.
The brew-house operations yield a fermentable liquid called wort after adding hops. This takes most of a working day.
After being boiled and cooled, the wort is fermented into beer, which takes approximately a week. Hops give beer its distinctive bitter flavor. It also helps remove some solids, which are precipitated out.
The younger beer is chilled, aged, filtered and carbonated. It is then ready to be packaged into kegs, bottles or cans.
It is done in a brewery by a brewer, and the brewing industry is part of most western economies.
Process of beer brewing
