- 1、ThemethodusedatOrvalisknownastopfermentation.2、AtOrvalathree-weekstorageperiodismorethanjustthenormalmaturingorconditioningperiod.3、ThebasicmaterialsofOrvalbeerarespringwater,maltedtworowbarley,aromatichopsandcandysugar.4、Orvalthenundergoesbott...
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