Hauv kev tsim cov npias, kev lim dej thiab kev ua kom tsis muaj menyuam yuav tsum tau ua.Lub hom phiaj ntawm kev pom yog tshem tawm cov poov xab thiab lwm yam turbid tshuaj nyob rau hauv npias thaum lub sij hawm fermentation txheej txheem, xws li hop resin, tannin, poov xab, lactic acid kab mob, protein thiab lwm yam impurities, thiaj li mus im...
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