 In homebrewing, the use of grain malt (including milling and mashing) can be skipped by adding malt extract to water to make wort.The mixture is then boiled to sanitize the wort and, in the case of most beer production, to extract the bittering, flavour and aroma from hops.In beer making, the wort is known as "sweet wort" until the hops have been added, after which it is called "hopped or bitter wort".