Fremgangsmåde til fremstilling af en fermenteret drik

摘要

Process for bittering a beverage during a brewing process comprising the steps of mashing to produce a mash, filtration of said mash to produce a wort, boiling of said wort, hopping of the wort by addition of hops containing ±-acids to heated water together with a predetermined amount of metal oxide mixed during a time period comprised between 5 to 60 minutes before being added to the wort during the boiling step and a fermentation of said wort to produce a fermented beverage.