"Bock is a strong lager of German origin. Several substyles exist, including maibock (helles bock, heller bock), a paler, more hopped version generally made for consumption at spring festivals; doppelbock (double bock), a stronger and maltier version; and eisbock, a much stronger version made by partially freezing the beer and removing the ice that forms.
Originally a dark beer, a modern bock can range from light copper to brown in colour. The style is very popular, with many examples brewed internationally." - (en.wikipedia.org 06.10.2019)
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