Xa usenza ikofu yobisi eshushu, akunakuphepheka ukutshisa kwaye ubethe ubisi. Ekuqaleni, ukutshisa nje ubisi kwakwanele, kodwa kamva kwafunyaniswa ukuba ngokufaka ubushushu obuphezulu, ubisi alukwazi ukufudunyezwa kuphela, kodwa i-foam yobisi inokusekwa. Ukuvelisa ikofu ngamaqamza obisi, okukhokelela kwincasa etyebileyo negcweleyo. Ukuqhubela phambili, i-baristas yafumanisa ukuba amaqamza obisi "anokuzoba" iipatheni kumphezulu wekofu, eyaziwa ngokuba "ziintyatyambo ezidonsayo", ezibeka isiseko malunga nayo yonke ikofu yobisi eshushu ukuba ibe namaqamza obisi kamva.
Nangona kunjalo, ukuba amaqamza obisi aphehliwe arhabaxa, anamaqamza amaninzi amakhulu, kwaye atyebile kakhulu kwaye omile, ahlukaniswe nobisi, incasa yekofu yobisi eyenziwe iya kuba mbi kakhulu.
Kuphela ngokuvelisa amagwebu obisi oluphezulu kunokuphucula incasa yekofu yobisi. I-foam yobisi ekumgangatho ophezulu ibonakaliswa njengento ethambileyo kunye nesibuko esibonakalayo phezu komhlaba. Xa ugubha ubisi (ukuntywila), kukwimeko ekhrimu kunye ne-viscous, kunye ne-fluidity enamandla.
Kusenzima kubaqalayo ukwenza amaqamza obisi athambileyo kwaye agudileyo, ke namhlanje, uQianjie uza kwabelana ngeendlela ezithile zokubetha amaqamza obisi.
Qonda umgaqo wokugxothwa
Ngethuba lokuqala, kufuneka sichaze umgaqo osebenzayo wokusebenzisa intonga ye-steam ukubetha ama-bubbles obisi. Umgaqo wokufudumeza ubisi lwe-steam kukutshiza ubushushu obuphezulu be-steam kubisi ngokusebenzisa intonga yomphunga, ukufudumeza ubisi. Umgaqo wokubetha ubisi kukusebenzisa i-steam ukufaka umoya ebisini, kwaye iprotheni ebisi iya kujikeleza emoyeni, yenze amaqamza obisi.
Ngoko ke, kwimeko yokungcwatywa kwe-semi, umngxuma womphunga unokusebenzisa i-steam ukujova umoya ebisini, wenze amaqamza obisi. Kwimeko yokungcwatywa kwesiqingatha, ikwanomsebenzi wokusasaza kunye nokufudumeza. Xa umngxuma we-steam ungcwatywe ngokupheleleyo ebisini, umoya awukwazi ukujolelwa ebisini, oku kuthetha ukuba kukho umphumo wokufudumala kuphela.
Kumsebenzi wokwenyani wokubetha ubisi, ekuqaleni, vumela umngxuma womphunga ungcwatywe ngokuyinxenye ukwenza amaqamza obisi. Xa ubetha amaqamza obisi, isandi esithi “sizzle sizzle” siya kuveliswa, eso sisandi esenzeka xa kugalelwa umoya ebisini. Emva kokuxuba i-foam yobisi eyaneleyo, kuyimfuneko ukugubungela ngokupheleleyo imingxuma yomphunga ukuze ugweme ukuphosa amagwebu ngakumbi kwaye kubangele ukuba i-foam yobisi ibe nzima kakhulu.
Fumana i-engile echanekileyo ukudlula ixesha
Xa ukubetha ubisi, kukulungele ukufumana i-angle efanelekileyo kwaye uvumele ubisi lujikeleze kule ndlela, eya kusindisa umgudu kunye nokuphucula ukulawulwa. Umsebenzi othile kukuqala ubambe intonga yomphunga ngombhobho wesilinda ukwenza i-engile. Itanki yobisi inokuthambeka kancinci ukuya emzimbeni ukuze yonyuse umgangatho womphezulu wolwelo, nto leyo enokwenza ngcono i-vortices.
Isikhundla umngxuma umphunga ngokubanzi ibekwe 3 okanye 9 intsimbi kunye nenqanaba ulwelo njengeziko. Emva kokuxuba i-foam yobisi eyaneleyo, kufuneka singcwabe umngxuma we-steam kwaye singawuvumeli ukuba uqhubeke ne-foam. Kodwa amaqamza obisi otywatyushiweyo adla ngokurhabaxa kwaye kukho namaqamza amaninzi amakhulu. Ke inyathelo elilandelayo kukusila onke la maqamza arhabaxa abe ngamaqamza amancinci.
Ngoko ke, kungcono ukuba ungawungcwabi umngxuma we-steam unzulu kakhulu, ukwenzela ukuba i-steam etshisiweyo ayikwazi ukufikelela kwi-bubble layer. Eyona ndawo ilungileyo kukuvala umngxuma womphunga kwaye ungenzi isandi esirhabaxa. Umphunga otshizwe ngaxeshanye ungasasaza amaqamza arhabaxa kumaleko weqamza lobisi, enze amaqamza obisi athambileyo nagudileyo.
Iya kuphela nini?
Ngaba sinokugqiba ukuba sifumanisa ukuba ugwebu lobisi luthanjisiwe? Akunjalo, umgwebo wesiphelo unxulumene nobushushu. Ngokuqhelekileyo, inokuthi igqitywe ngokubetha ubisi kwiqondo lokushisa elingama-55-65 ℃. Abasaqalayo banokuqala basebenzise ithemometha kwaye bayive ngezandla zabo ukuze babambe ubushushu bobisi, ngelixa izandla ezinamava zinokuchukumisa ngokuthe ngqo ivati yeentyatyambo ukwazi ubungakanani beqondo lobushushu bobisi. Ukuba iqondo lokushisa alikafiki emva kokubetha, kuyimfuneko ukuqhubeka nokuqhumisa kuze kufike ubushushu.
Ukuba iqondo lobushushu lifikile kwaye alikathanjiswa, nceda uyeke kuba ubushushu obuphezulu bobisi bunokubangela iprotein denaturation. Abanye abasaqalayo kufuneka bachithe ixesha elide ngokwentelekiso kwinqanaba lokusenga, ngoko kuyacetyiswa ukuba basebenzise ubisi olufakwe efrijini ukuze bafumane ixesha lokusenga elongezelelekileyo.
Ixesha lokuposa: Apr-30-2024