Brewing is the production of beer through steeping a starch source which is commonly cereal grains in water and then fermenting it with yeast. It is done in a brewery by a brewer and the brewing industry is the part of most of the western economies. Brewing has started taking place since around the sixth millennium BC. The archeological evidence suggests that this technique was used in most emerging civilizations including ancient Egypt and Mesopotamia. The basic ingredients of beer are water, a starch source such as malted barley which is able to be fermented i.e. converted into alcohol, a brewer’s yeast to induce fermentation and a flavoring such as hops. Sometimes, a secondary starch source is also used such as maize, rice or sugar. The amount of each starch source in a beer recipe used is collectively called as the grain bill.
Home brewing is the brewing of beer, wine, sake, mead, cider, Perry and other beverages through fermentation on a small scale as a hobby or personal consumption, free distribution at social gatherings, amateur brewing competitions or other non-commercial reasons. Both the alcoholic and non-alcoholic beverages can be made at home. Brewing of wine on a domestic level has been done for thousands of years. But it has been subjected to regulation and prohibition during some time periods in certain places. The legality of Home brewing varies from country to country. Some of the countries limit the volume an individual can legally brew.
Home brewing is done for many reasons, people usually homebrew because it can be cheaper than buying commercial equivalent beverages. Doing so, people can easily adjust recipes according to their own tastes creating beverages that are unavailable in the open market. Many people also enjoy entering homebrew competitions which are also referred to as a craft-brewing. Many homebrew clubs are also developed around many places. There is one organization which is known as Beer Judge Certification Program which sanctions beer, mead and cider homebrew competitions, certifies judges and also offer other categories for judging. The judging categories are known as Beer Style Guidelines and are written by the BJCP Style Committee.