Yog tias koj xav tau cov zaub khov uas zoo tshaj plaws uas ci ci, cov tsw thiab ntxig, koj yuav tsum ua rau daim tawv dawb ua ntej muab tso rau hauv lub freezer. Blanching tsis tsuas yog pab cov khoom lag luam los saib xyuas lawv cov tsos, tab sis kuj tseem tso cai ntxiv rau tiv thaiv lawv ntawm qhov tsis taus.
Cas blanching muab
Cov zaub, khov uas tsis muaj qhov blanching ua ntej, yog qhov tsim nyog, tab sis ho poob lawv cov saj thiab aroma. Lawv cov qauv, tom qab defrosting, yog ntau softer, thiab xim thiab tsw tsis ntxhiab heev. Qhov no yog vim qhov tseeb tias cov enzymes ua rau ua kom nrawm nrawm ntawm txhua yam kev tawm tsam yog lub luag haujlwm, thiab lwm yam, rau cov txheej txheem lwj. Kev ua kom khov qeeb ua rau txo qhov kev txiav txim ntawm cov enzymes, tab sis tsis cheem lawv cov kev ua txhua yam, tab sis kev kho cua sov, txawm tias ib qho luv luv, yuav luag txhua qhov tsis ua lawv. Blanching tseem tshem tawm cov kab mob thiab tshuaj tua kab los ntawm saum npoo ntawm cov zaub ua tiav.
Cov kua txob, pob kws, cov dos thiab cov txiv lws suav tsis tau dawb txhawm rau ua ntej khov.
Yuav ua li cas kom dawb zaub
Cov tais tshwj xeeb, uas muaj cov zaub ntses tob, qhov tshwj xeeb mesh colander thiab lub hau, yog qhov zoo rau blanching. Yog tias koj tsis muaj cov khoom siv zoo li no, noj cov saucepan uas niaj hnub nrog lub hau thiab colander uas phim rau qhov loj me. Rau txhua ib phaus zaub, koj yuav xav tau 2 liv ntawm cov dej npau. Cov zaub zom hauv blanched me me, tom qab tev thiab ntxuav lawv thiab tsis muaj sib xyaw ntau hom. Cov zaub loj xws li carrots, zaub paj thiab taub dag txiav rau hauv cov me me. Cov kab tawv tawv tau muab tshem tawm ntawm cov zaub ntsuab. Lawv muab tso rau hauv lub colander thiab muab tso rau hauv cov dej npau npau, npog nrog lub hau thiab ua kom sov. Sij hawm ua noj yog nyob ntawm hom thiab zaub. Cov zaub mov siav yuav tsum muab tso rau hauv cov dej khov kom tsis txhob ua noj. Ua li no, dej khov tso rau hauv dej txias lossis nws tau hloov pauv ntau zaus. Chilled zaub yog qhuav nrog linen lossis ntawv tshuaj yej phuam thiab tom qab ntawd npaj kom khov.
Cov hnab ntim ntawm cov zaub khov vim tias txawm tias txoj kev npaj ua ntej tseem yuav muaj hnub tas sij hawm.
Cov zaub muaj zog xws li taum pauv, taub dag cov pob, kohlrabi zaub qhwv tuaj yeem ua tiav tsis yog nrog ncu, tab sis muab tso rau hauv cov dej npau, thiab tom qab ntawd muab xau lossis tshem tawm nrog rab diav. Nws yog ib qho tseem ceeb uas tsis txhob muab lub kauj ruam ntxiv tso rau hauv dej kom txog thaum cov kua tau npau npau dua.
Dej blanching tuaj yeem ntsev me ntsis.
Cov khoom noj xws li cov noob taum asparagus, taum pauv hauv lub plhaub, zais zis rau 2 mus rau 4 feeb. Zaub cob pob paj lossis zaub paj dawb, txiav tawm mus rau hauv cov florets, kev ua tiav ntev li 2 feeb. Kev sib tw kohlrabi cocks, zaub nplooj, sib cais taum blanch tsis ntev dua ib feeb.
