Ko da yake ruwa kanta ne, ideally, flavorless, da matakin da narkar da ma'adanai, musamman, bicarbonate ion, ya aikata tasiri giya ta gama dandano. Saboda da ma'adinai Properties na kowane yanki ta ruwa, musamman yankunan da aka asali ne kawai masu samar da wasu iri giya, kowane ganowa ta hanyar yankuna halaye. Yankin geology yarjejeniyar da cewa Dublin ta wuya ruwa ne da-dace da yin stout, kamar Guinness, yayin da Plzeň Region ta taushi ruwa ne manufa domin yin Pils (pale lager), kamar Pilsner Urquell. The ruwa na Burton a Ingila dauke gypsum amfanin, yin ale zuwa irin wannan mataki cewa brewers na pale ales zai ƙara gypsum zuwa ruwa a cikin wani tsari da aka sani da termed starch. Burton, musamman, bicarbonate ion, ya aikata tasiri giya ta gama dandano.
yana samar da enzymes wanda ke canza sitaci a cikin hatsi zuwa sukari mai yisti