Cov kav dej cua sov kuj tseem tsim nyog rau kev saib xyuas thiab kho cov khoom siv hluav taws xob cua sov
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Cov kav dej cua sov kuj tseem tsim nyog rau kev saib xyuas thiab kho cov khoom siv hluav taws xob cua sov
Lub raj cua sov yog ib qho hluav taws xob cua sov, thiab vim nws siv mus ntev, nws cov kev kho mob kuj tseem tsim nyog los xyuas kom meej tias nws lub neej ntev kev pab cuam. Kev kho qhov blackening ntawm cov kav dej cua sov feem ntau yog txoj kev saib xyuas ntau tshaj plaws, uas peb xa mus rau kev kho blackening.
Cov kauj ruam yooj yim rau blackening kev kho mob ntawm cov cua sov raj:
Qhov yuav tsum tau ua ua ntej rau kev kho blackening yog tswj kom huv thiab huv ntawm lub cua sov raj nto. Yog hais tias muaj impurities rau ntawm nws nto, nws yuav tsis conducive rau blackening kev kho mob.
Thawj qhov uas yuav tsum tau ua yog tshem tawm cov organic teeb meem ntawm qhov chaw, uas yog hu ua degreasing kev kho mob. Txhua tus neeg ntawm no yuav tsum tau so kom paub tseeb tias kev kho degreasing yooj yim ua tiav. Kev kho degreasing tsuas yog xav tau cov tshuaj degreasing. Thiab degreasing kua kuj yooj yim muaj nyob rau hauv lub khw. Qhov yuav tsum tau ua rau degreasing kev kho mob yog kom tswj tau lub siab alkalinity ntawm cov kua, nrog ib tug ruaj khov pH nqi ntawm ib ncig ntawm 13. Lub sij hawm yuav tsum tau yog kwv yees li 30 feeb. Tom qab qhov kev kho mob no, qhov saum npoo yuav tsum tau ntxuav kom tshem tawm cov impurities tsim los ntawm cov tshuaj tiv thaiv. Kev ntxuav yuav tsum tau ua nrog dej huv kom ntseeg tau tias muaj kev huv huv ntawm qhov chaw ntawm lub raj cua sov.
Tom qab alkaline ntxuav, nws yuav tsum tau pickled. Vim nws qhov chaw tsis yog tsuas yog muaj alkaline organic teeb meem, tab sis kuj acidic organic teeb meem. Yog li acidic tu kuj tseem tsim nyog heev. Qhov kev xav tau acidity yog pH ntawm 3, thiab lub sijhawm ua haujlwm yuav tsum tsis pub tshaj 10 feeb.
Thaum kawg, txheej txheem blackening yuav raug ua. Ph tau lees tias nyob nruab nrab ntawm 2-4. Lub sijhawm 10 feeb yog txaus. Tom qab ua tiav, pib nrog kev tu.
Cov kauj ruam kawg yog kom qhuav lub cua sov raj. Kev ziab yog tshem tawm cov dej adhering rau saum npoo ntawm lub raj cua sov. Thaum kawg, nws yog lub sijhawm los thov roj.
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