Kev ntsuas qhov viscosity ntawm lub zis tshuaj yog qhov ntsuas qhov ntev lossis qhov tsis ntev. Nws pab peb paub seb lub zis tshuaj no yuav dhau li cas. Piv txwv li, cov honey yog ntev dua cov dej. Peb tau paub lawm tias, thaum peb pov cov honey, nws pov tawm yuav raug dua thiab cov dej yuav dhau li ntau dua. Rau cov tsis yog tus kws tsim khoom: Qhov viscosity yog txaus nyob rau ntau qhov chaw — piv txwv li, qhov chaw ua khoom noj, qhov chaw ua khoom tshuaj, thiab qhov chaw ua khoom oil. Cov khoom tshuaj yuav tsum paub qhov viscosity ntawm cov zis tshuaj uas lawv tsim los mus xaiv tias lawv yuav ua haujlwm zoo. Piv txwv li, yog tias ib qhov chaw tsim khoom yog tsim cov syrup, lawv yuav tsum paub ntsuas qhov viscosity los mus xaiv tias lawv yuav tau qhov ntev lossis qhov tsis ntev uas lawv xav tau. ZONWON tsim qhov ntsuas qhov kev tawm ntawm cov ntsuas rpuas ntsuas qhov viscosity ntawm lub zis tshuaj zoo tshaj plaws. Qhov no yog los pab cov khoom tshuaj tsim khoom zoo tshaj plaws, tsis yog lwm yam.