Ice cream: koj tus cawm seej lub caij ntuj sov

Nyob rau hauv lub hnub ci ntsa iab, lub caij ntuj sov kub, thaum koj hws ntau, daim di ncauj qhuav thiab tus nplaig, yog tias koj noj tau ib lub qhov ncauj ntawm ice cream, koj yuav xav tias tshiab tam sim ntawd. Tab sis qhov khoom noj txias thiab qab no tau tsim thiab tsim tawm li cas?

Cov thev naus laus zis txias ice cream uas tam sim no nrov thoob plaws ntiaj teb thawj zaug pib hauv Suav teb thiab raug coj mus rau Ltalis los ntawm Marco Polo. Nws raug coj mus rau Fabkis los ntawm tus poj huab tais Italian, thiab Vaj Ntxwv Charles I siv nyiaj ntau heev los yuav daim ntawv pov thawj no rau Askiv. Thaum kawg, nrog rau kev tshawb pom ntawm American New World thiab kev txhim kho kev lag luam thoob ntiaj teb rau Tebchaws Meskas.

Txawm yog hom ice cream twg los xij, thawj kauj ruam hauv nws cov khoom tsim yog kev npaj cov kua. Kev npaj kua yog lub hauv paus ntawm kev tsim ice cream, thiab homogenization yog kauj ruam tseem ceeb uas txhim kho cov qauv thiab saj ntawm ice cream los ntawm kev ua kom cov rog me me. Kauj ruam no yog qhov tseem ceeb rau kev txhim kho tom ntej ntawm cov saj ice cream. Tom qab kev kho ua ntej ntawm cov khoom xyaw, cua sov ntawm qhov sib tov thiab cov txheej txheem sterilization, kauj ruam tseem ceeb ntawm homogenization tshwm sim.

Kev sib xyaw ua ke yog ib kauj ruam tseem ceeb heev. Hauv cov kab tsim khoom niaj hnub no, cov dej khov nab kuab raug tsim ua cov khoom tiav los ntawm cov txheej txheem ntawm kev khov, aerating thiab canning, thaum cov duab nyuaj yog tsim tshwj xeeb los ntawm kev molding thiab txiav cov txheej txheem. Tom qab homogenization, cov rog loj tau hloov mus ua cov me dua, uas pab cov emulsifiers ua haujlwm zoo dua los txhim kho cov qauv thiab saj ntawm cov khoom. Tom ntej no, cov kua dej dhau los ntawm "laus" theem ntawm kev txias thiab so kom txhim kho nws cov qauv. Thaum kawg, nyob ntawm hom khoom, xws li ice cream hauv khob lossis cones, nws tau sau rau hauv cov thawv tsim nyog thiab kev tsim khoom tiav.

Cov dej khov nab kuab txiv qaub, dej khov nab kuab txiv nkhaus taw, dej khov nab kuab txiv tsawb thiab dej khov nab kuab txiv duaj los ntawm peb lub tuam txhab yog tsim los ntawm kev siv cov thev naus laus zis tshiab tshaj plaws. Raws li pom hauv daim duab, cov saj sib txawv tau pwm ib tus zuj zus thiab ua kom zoo li lawv cov saj txiv hmab txiv ntoo. Tseeb thiab nthuav, ua rau cov neeg siv khoom txaus siab rau kev yuav khoom. Nrog rau kev ntxiv cov kua txiv hmab txiv ntoo tiag tiag, cov saj tau rov qab zoo li cov txiv hmab txiv ntoo tshiab, thiab cov vitamins tuaj yeem ntxiv rau, uas yog qhov kev xaiv zoo los dhau lub caij ntuj sov kub.