Kev kis kab mob ntawm tes tuaj yeem yooj yim dhau los ua teeb meem feem ntau hauv cov chaw kuaj kab mob ntawm tes, qee zaum ua rau muaj qhov tshwm sim loj heev.Cov kab mob kab mob hauv cov kab mob tuaj yeem muab faib ua ob pawg, cov tshuaj lom neeg xws li nruab nrab, cov ntshav thiab dej impurities, endotoxins, plasticiz...
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