Brewing process is nothing but just letting the material sit in boiling water so as to extract its flavor. As for example, beer is an alcoholic beverage, which is brewed from yeast-fermented malt and flavored with hops. People who have taken this brewing process as their profession and livelihood are known as brewers in Brooklyn. Brewing (process of making beer) can be done by the brewers in breweries or at homes. The basic ingredients of brewing beer are water, yeast fermented malt, alcohol and hops. Some brewers in Brooklyn use breweries as their business place also for selling beer.