Beer is a fermented beverage that is produced from four ingredients for making beer: barley malt, hops, yeast, and water. Malting is the technique that causes germination of barley and then interrupts it dry. In this way the enzymes that convert the starch of the grain into sugars appear that the yeasts will later transform into alcohol. Along with barley malt, the beer supports other cereals such as wheat, rye and oats. Cones are used from the hop plant. Hops is not only responsible for the bitterness of the beer, it is a natural preservative and also provides flavor and fruit and herbal aromas depending on the variety. We explain step by step how to make craft beer, or how to make the best craft beers.