They're really tall, and are pretty strong may because according to Halo 2, they are allied with gruntiness. 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. This long boil extracts resins, which provides the bittering. The bittering hops, added first, are boiled in the wort for approximately one hour to one and a half hours.
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