Ukugeleza kwemishini ethile yeyogathi:
Ukushisa: inhloso yokushisa ukushisa ukuthuthukisa ukusebenza kahle kwenqubo elandelayo ye-homogenization, futhi ukukhethwa kokushisa okushisa akufanele kube ngaphezu kokushisa kwe-gelatinization yesitashi (ukugwema ukuthi isakhiwo sezinhlayiyana sonakaliswe inqubo ye-homogenization ngemuva kwe-starch gelatinization).

I-Homogenization: i-homogenization ibhekisela ekwelashweni kwemishini kwama-globules wamafutha obisi, ukuze abe ama-globules amancane ahlakazeke ngokulinganayo obisini.Esigabeni se-homogenization, impahla ingaphansi kwe-shear, ukungqubuzana kanye namandla e-cavitation.Isitashi sesitashi esishintshiwe sinokumelana okuqinile kwe-shear ngenxa yokuguqulwa kokuxhumanisa, okungagcina ubuqotho besakhiwo se-granule, esiza ukugcina i-viscosity nokuma komzimba we-yogurt.

Ukuvala inzalo: ukufakwa kwe-pasteurization ngokuvamile kusetshenziswa, futhi inqubo yokuvala inzalo engu-95 ℃ kanye no-300s ngokuvamile yamukelwa ezitshalweni zobisi.Isitashi esilungisiwe sinwetshwa ngokugcwele futhi sifakwe i-gelatin kulesi sigaba ukuze senze i-viscosity.

Ukupholisa, ukujova nokuvutshelwa: isitashi se-denatured siwuhlobo lwento esezingeni eliphakeme yamangqamuzana, esagcina ezinye izakhiwo zesitashi sokuqala, okungukuthi, i-polysaccharide.Ngaphansi kwenani le-pH le-yoghurt, isitashi ngeke sehliswe amagciwane, ngakho-ke singagcina ukuzinza kwesistimu.Lapho inani le-pH lesistimu yokuvutshelwa lehla liye endaweni ye-casein ye-isoelectric, i-casein ishintshashintsha futhi iqine, yakhe isistimu yenethiwekhi yezinhlangothi ezintathu exhunywe ngamanzi, futhi uhlaka luba yi-curd.Ngalesi sikhathi, isitashi se-gelatinized singagcwalisa uhlaka lwamathambo, sibophe amanzi mahhala futhi sigcine ukuzinza kwesistimu.

Ukupholisa, ukunyakazisa kanye nangemva kokuvuthwa: inhloso yokuvuselela ukupholisa iyogathi ukuvimbela ngokushesha ukukhula kwama-microorganisms kanye nomsebenzi we-enzyme, ikakhulukazi ukuvimbela ukukhiqizwa kwe-asidi ngokweqile kanye nokuphelelwa amandla kwamanzi ngesikhathi sokugqugquzela.Ngenxa yemithombo ehlukene yezinto zokusetshenziswa, isitashi esishintshiwe sineziqu ezihlukene ze-denaturation, futhi umphumela wesitashi esishintshiwe esisetshenziswa ekukhiqizeni iyogathi awufani.Ngakho-ke, isitashi esishintshiwe singanikezwa ngokuvumelana nezidingo ezahlukene zekhwalithi ye-yogurt.