Chikafu chakabikwa mugaba chitsva kwazvo
Chikonzero chikuru chinoita kuti vanhu vazhinji vasiye zvekudya zvemumagaba ndechekuti vanofunga kuti zvekudya zvemumagaba hazvisi zvitsva.
Rusaruro urwu rwakavakirwa pamaonero evatengi nezvechikafu chemumagaba, izvo zvinoita kuti vaenzanise kugara kwenguva refu kwechikafu nekusashanda kwenguva refu. Zvisinei, chikafu chemumagaba chikafu chitsva chinogara kwenguva refu uye chinogara kwenguva refu.
1. Zvinhu zvitsva
Kuti chikafu chemumagaba chive chitsva, vagadziri vezvekudya zvemumagaba vanosarudza chikafu chitsva mumwaka wacho nokungwarira. Mamwe marudzi anototanga nzvimbo dzawo dzekudyara nedzekuredza hove, uye vanogadzira mafekitori ari pedyo kuti varonge kugadzirwa kwezvekudya.
2. Chikafu chiri mumagaba chinogara kwenguva refu
Chikonzero chekugara kwenguva refu kwechikafu chemumagaba ndechekuti chikafu chemumagaba chinovharwa ne vacuum seal uye chinopiswa nekupisa kwakanyanya panguva yekugadzira. Nzvimbo inovharwa ne vacuum inodzivirira chikafu chine hutachiona hwepamusoro kuti chisabate mabhakitiriya ari mumhepo, zvichidzivirira chikafu kuti chisasvibiswe nemabhakitiriya ari panobva chikafu.
3. Hapana chikonzero chekuchengetedza zvese
Muna 1810, pakazvarwa chikafu chemumagaba, zvinhu zvemazuva ano zvekuchengetedza chikafu zvakaita sesorbic acid nebenzoic acid zvakanga zvisati zvagadzirwa zvachose. Kuti chikafu chirambe kwenguva refu, vanhu vaishandisa tekinoroji yekugadzira chikafu mumagaba kugadzira magaba.
Kana zvasvika kune chikafu chemumagaba, vanhu vazhinji vanotanga "kuramba". Vanhu vanogara vachifunga kuti zvinochengetedza chikafu zvinogona kuwedzera hupenyu hwechikafu, uye chikafu chemumagaba chinowanzogara kwenguva refu, saka vanhu vazhinji vanofunga zvisirizvo kuti chikafu chemumagaba chinofanira kunge chakawedzera zvinochengetedza zvakawanda. Chikafu chemumagaba chinowedzerwa nezvinhu zvinochengetedza zvakawanda here, sezvinotaurwa neveruzhinji?
kuchengetedza? Kwete zvachose! Muna 1810, apo magaba akaberekerwa, nekuti tekinoroji yekugadzira yakanga isiri padanho repamusoro, zvaive zvisingaite kugadzira nzvimbo yekubvisa tsvina. Kuti chikafu chiwedzere hupenyu hwesherufu, vagadziri panguva iyoyo vaigona kuwedzera mishonga yekuchengetedza. Iye zvino muna 2020, nhanho yekukura kwesainzi netekinoroji yave yakakwira zvikuru. Vanhu vanogona kugadzira nzvimbo yekubvisa tsvina neunyanzvi kuti vave nechokwadi chekuti chikafu chakachena, kuitira kuti tupukanana twasara tisakure tisina okisijeni, kuitira kuti chikafu chiri mumagaba chigone kuchengetedzwa kwenguva yakareba.
Saka, neruzivo rwemazuva ano, hapana chikonzero chekuwedzera mishonga yekuchengetedza. Pakudya kwemumagaba, vanhu vazhinji vachiri kusanzwisisana kwakawanda. Heano mamwe magadzirirwo:
1. Chikafu chiri mumagaba hachina kutsva here?
Chikonzero chikuru chinoita kuti vanhu vazhinji vasade chikafu chemumagaba ndechekuti vanofunga kuti chikafu chemumagaba hachina kutsva. Vanhu vazhinji vanofananidza "kugara kwenguva refu" ne "chisina kutsva", izvo zvisirizvo. Kazhinji, chikafu chemumagaba chinenge chiri chitsva kupfuura michero nemiriwo yaunotenga kusupamaketi.
Mafekitori mazhinji ekugadzira magaba anotanga kudyara pedyo nemafekitori. Ngatitorei matomatisi emumagaba semuenzaniso: kutaura chokwadi, zvinotora nguva isingasviki zuva kuti utore, ugadzire uye uvhare matomatisi. Angave matsva sei kupfuura michero nemiriwo yakawanda munguva pfupi! Pamusoro pezvose, vatengi vasati vatenga, michero nemiriwo mitsva yakanga yatosangana nematambudziko e9981 uye yakarasikirwa nezvinovaka muviri zvakawanda. Kutaura chokwadi, chikafu chemumagaba chine hutano kupfuura chikafu chitsva chaunodya.
2.Nguva yakareba kudaro, chii chiri kuitika?
Tatotaura nezvechimwe chezvikonzero zvinoita kuti magaba agare kwenguva refu, kureva kuti, nzvimbo inotonhorera, uye chechipiri ndechekuchenesa chikafu panguva yekupisa kwakanyanya. Kuchenesa chikafu panguva yekupisa kwakanyanya, kunozivikanwawo sekuti pasteurization, kunoita kuti chikafu chine utachiona panguva yekupisa kukuru chisabatane nemabhakitiriya ari mumhepo, izvo zvinonzi kudzivirira chikafu kuti chisasvibiswe nemabhakitiriya anobva kwachiri.
3. Chikafu chakabikwa mumagaba hachina hutano hwakafanana nechikafu chitsva!
Kushaikwa kwekudya kunovaka muviri ndicho chikonzero chechipiri chinoita kuti vatengi varambe kutenga chikafu chemumagaba. Chikafu ichocho chemumagaba chine hutano zvechokwadi here? Kutaura zvazviri, tembiricha yekugadzirwa kwenyama yemumagaba inenge 120 ℃, tembiricha yekugadzirwa kwemiriwo nemichero yemumagaba haisi kupfuura 100 ℃, nepo tembiricha yekubika kwedu kwezuva nezuva iri kupfuura 300 ℃. Saka, kurasikirwa nemavhitamini mukuita kwekubika kuchapfuura kurasikirwa kwekukangwa, kukangwa, kukangwa uye kubikwa? Uyezve, humbowo hwakasimba hwekutonga kutsva kwechikafu ndechekuona mwero wezvinovaka muviri zvepakutanga muchikafu.
Nguva yekutumira: Nyamavhuvhu-08-2020