txheem
Vim li cas cov txheej xim dawb ntawm chocolate thaum nws nyob hauv lub tub yees?
Khoom noj khoom haus
Vim li cas yog tias thaum peb yuav chocolate peb muab nws los ntawm lub txee ntawm chav tsev kub hauv tsev, peb muab tso rau hauv lub tub yees?
Qhov kev nyiam ua dab tsi uas peb muaj nrog hloov khoom nyob ib puag ncig ... Thiab peb tsis tau txhais hais tias thaum peb muab peb lub tsev rau Feng Shui "session" uas peb pom txoj hauv kev tshiab ntawm peb lub tsev, tab sis thaum peb mus rau lub tsev loj, peb khaws cov khoom. los ntawm nws cov txee thiab hauv peb lub tsev peb tsis muab tso rau hauv lub pantry, tab sis nyob rau hauv lub tub yees.
Piv txwv li, yog tias peb yuav cov qe ntawm chav tsev kub, vim li cas lawv thiaj li xaus rau ntawm ib qho ntawm peb lub tub yees? Raws li tau piav qhia los ntawm Luis Riera, tus thawj coj ntawm lub koom haum saib xyuas kev nyab xeeb zaub mov SAIA, yog lub qe yog ib qho qis dua ntawm 25ºC, Nws tuaj yeem khaws cia yam tsis muaj teeb meem ntawm chav tsev kub, yog li tsis muaj dab tsi tshwm sim yog tias peb nyob hauv tus cwj pwm muab lawv tso rau ntawd. Ntawm qhov tod tes, tib yam tsis tshwm sim nrog chocolate tuav ...
Chocolate nyob rau hauv lub fridge, yog los yog tsis?
Peb feem ntau pom ib txoj hauv kev ntev nrog cov txee uas muaj cov qhob noom xim kasfes, thiab thaum peb mus txog tsev thiab tso qhov kev yuav khoom, peb tam sim ntawd tso tseg. chocolate nyob rau hauv lub fridge… Ib qho kev txiav txim siab, pom tau tias, tsis txawj ntse, raws li cov kws paub txog zaub mov.
"Nws yuav tsis zoo rau muab cov ntsiav tshuaj no tso rau hauv lub tub yees txij li ib qho ntawm cov yam ntxwv ntawm chocolate, uas ua rau peb txaus siab, yog qhov ntawd. melts yooj yim nyob rau hauv peb lub qhov ncauj. Qhov no tshwm sim yog tias cov qhob noom xim kasfes tau zoo, khaws cia zoo thiab peb saj nws ntawm qhov kub thiab txias. Tsis tas li ntawd, thaum nws melts nws muab tawm tag nrho cov aromas thiab peb tuaj yeem txaus siab rau qhov tsw ntawm nws qhov zoo tshaj plaws », hais tias Luis Riera. Yog li ntawd, peb yuav tsis muaj qhov txaus siab yog tias peb haus cov qhob noom xim kasfes no ntawm qhov kub thiab txias.
Thaj, chocolate yog tsim los ntawm cocoa thiab qab zib solids raug tshem tawm hauv cocoa butter: cov khib nyiab muab qhov tsw thiab cocoa butter tus qauv. Luis Riera hais tias cov cocoa butter uas muaj cov qhob noom xim kasfes, yog tias zoo crystallized, muaj qhov melting point zoo ib yam li peb lub cev kub thiab melts yooj yim. Ntawm qhov tsis sib xws, crystallization yog hloov pauv thiab lub melting point kuj: «Yog hais tias peb saj cov qhob noom xim kasfes txias, tawm ntawm lub tub yees, nws yuav tsis yaj yooj yim heev nyob rau hauv peb lub qhov ncauj, vim hais tias cov aromas yuav tsis yooj yim pom thiab peb yuav poob qab nuances. thiab zoo siab, "nws hais.
Dab tsi yog "Fat Bloom"
Tej zaum koj yuav tau pom tias thaum cov qhob noom xim kasfes tshiab tawm ntawm lub tub yees, nws tsis tshwm hauv nws cov xim xim av tsaus, tab sis ib txheej xim dawb npog cov xim uas yog cov yam ntxwv ntawm chocolate. Qhov no yog dab tsi? Qhov "daim ntaub thaiv" no hu ua rog tawg lossis "fat Bloom" tshwm sim vim hais tias muaj pes tsawg leeg ntawm cov roj chocolate ua rau nws cov qauv tsim cov khoom siv lead ua hauv lub xeev, thiab cov crystals no tuaj rau hauv cov ntaub ntawv uas yaj hauv ntau txoj kev.
"Los ntawm qhov kub ntawm 36 ° C, tag nrho cov muaju yog yaj thiab thaum peb txo qhov kub ntawm 36 ° C, cov roj recrystallizes, tab sis nws tsis ua li ntawd, tab sis nyob rau hauv cov versions hloov cov qauv thiab, yog li ntawd, lawv tsis muaj kev cuam tshuam lub teeb. nyob rau hauv tib txoj kev thiab lawv tsis muaj tib lub ci ci, lawv muab ib tug gritty saj, ntxhib ntxhib ntxhib los mos ... ”, piav qhia Beatriz Robles, kws tshwj xeeb hauv zaub mov kev nyab xeeb. Tab sis qhov no tsis tau txhais hais tias chocolate muaj teeb meem los ntawm qhov pom kev nyab xeeb ntawm zaub mov, tab sis qhov ntawd los ntawm qhov kev xav ntawm qhov pom nws yuav yog "qhov tsis zoo ntawm chocolate".
Luis Riera taw qhia tias qhov kev hloov pauv ntawm kev khaws cia tseem muaj ntau yam ua nrog cov txheej txheem ntawm cov xim dawb: «Yog tias peb yuav cov qhob noom xim kasfes uas tau npaj zoo thiab khaws cia zoo, nws cov tsos yuav du, zoo li qub thiab ci iab. Yog tias tib qho chocolate tau khaws cia tsis zoo, nws cov tsos yuav zoo dua thiab nws cov qauv yuav raug hloov pauv crystallization.
Yog qhov chaw khaws cia yog qhov chaw nyob qhov twg kub dhau qhov kev hloov pauv ntau zaus, yuav tsim… «Piv txwv li, ib lub tsev lag luam uas thaum nws yog qhib rau pej xeem lem ntawm cov cua txias thiab muab nws tua thaum nws yog kaw. Qhov no ua rau thaum qhov kub thiab txias, ib feem ntawm cocoa butter muaj nyob rau hauv chocolate melts thiab nce mus rau saum npoo. Thiab thaum kub poob, lub cocoa butter crystallizes dua, tab sis nyob rau hauv ib tug uncontrolled thiab tsis raug txoj kev, nrog ib tug ntau dua melting point, "piav qhia tus kws tshaj lij. Yog hais tias qhov kub thiab txias hloov yog cyclical, uas yog rov ua tsis tu ncua ntawm lub sij hawm mus rau lub sij hawm, lub qhob noom xim kasfes Nws yuav xaus kom muaj xim dawb thiab yuav tsis yaj yooj yim hauv peb lub qhov ncauj.
"Sugar Bloom"
Tus kws paub txog kev nyab xeeb khoom noj khoom haus Beatriz Robles qhia tias qhov teeb meem uas peb muaj nrog lub tub yees yog qhov kev hloov ntawm txias mus rau cua sov, uas yog, thaum peb muab nws tawm ntawm chav tsev kub, muaj condensation ntawm dej nyob rau saum npoo ntawm chocolate thiab qhov no ua rau nws. tuaj yeem yaj cov suab thaj thiab crystallization uas kuj tsim ib txheej dawb hu ua «qab zib paj»:« Cov dej noo nyob rau saum npoo ntawm cov qhob noom xim kasfes, vim yog condensation vim qhov hloov pauv ntawm qhov kub thiab txias, yuav ua rau "qab zib tawg", microscopic recrystallization ntawm qab zib, tsim ib txheej nyias nyias. ». Tus kws qhia noj zaub mov tseem pom zoo tias, yog tias cov qhob noom xim kasfes tsis tuaj yeem khaws cia rau hauv qhov chaw sov, qhwv zoo los yog "muab tso rau hauv lub thawv kom tsis txhob muaj cov kev hloov pauv no thiab condensations."