Inyaniso engenakuchazwa yeKofu ekhawulezileyo

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ikofu, ikofu yangoko nangoko

Ikofu yangoku kwangoko lukhetho olunempikiswano phakathi kofu aficionados, abaninzi bayijonga njengekhofi engeyonyani okanye ebuthathaka. Inento elula, nangona kunjalo, ezinye iinkampani ziye zayisebenzisa ukuthengisa iikhofi eziphezulu, ezinje Starbucks . Kodwa yintoni umahluko obalulekileyo phakathi kwekofu yangoko nangoko kunye nekofu eyenziwe kwimbotyi yonke? Kwaye yintoni kanye kanye ngu ikofu yangoko nangoko, kunjalo?

Ukwenza ikofu kwangoko kuyakhawuleza, akubizi mali ingako, kwaye kulula kunokwenza ikofu eqhelekileyo. Yenziwe ngokongeza umgubo emanzini ashushu, ngokufana nokwenza iti yangoko nangoko. Ikofu ekhawulezileyo yenziwe ngeembotyi zekofu ezigcadiweyo, ezisemhlabeni kunye nezenziwe. Emva koko onke amanzi ayasuswa kwikofu eyenziweyo, eshiya iikristali ezinamanzi. Xa ufaka amanzi kwezi kristali, iphinda ibuye ibe yikofu (nge HuffPost ).

Yenziwa njani ikofu kwangoko

ikofu yangoko nangoko

Imveliso yekofu ekhawulezileyo yenziwa ngenkqubo yokomisa isitshizi okanye inkqubo yokumisa okomkhenkce. Ukutshiza ukutshiza yinkqubo apho ikhofu engamanzi ifafazwa njengenkungu entle emoyeni oshushu, malunga ne-480 degrees Fahrenheit. Xa ikofu ifika emhlabeni, iyakoma ibe ziikristali ezincinci, njengoko amanzi eya kube evuthuzile.



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Ukuma okomileyo kuyabandakanyeka. Ikofu iphekwe yaphinde yakhutshwa, emva koko iyabanda malunga nama-20 degrees Fahrenheit de ibe yinto yekhofi. Umxube we-slushy emva koko ubanda chilled usebenzisa ibhanti, igubu, okanye itreyi kubushushu be -40 degrees Fahrenheit. Oku kuyibangela ukuba yenze i-slabs yekofu eqanduselweyo ize ke yohlulwe ibe ziigranu, ezithunyelwa kwisithuba sokomisa amanzi apho umkhenkce uphefumlelwe khona, ushiye ngasemva iigrafu zekofu yangoko nangoko.

Ithelekiswa njani ikofu ekhawulezileyo kwisebe le-caffeine

ikofu yangoko nangoko

Kukho i-caffeine encinci kwikofu ekhawulezileyo kunesiqhelo, enokuba sisibonelelo kwabo bafuna ukunciphisa ukusetyenziswa kwabo. Ikomityi enye yekofu ekhawulezileyo inee-milligrams ezingama-30 ukuya kwezingama-90 zecaffeine xa kuthelekiswa nekofu yesiqhelo, equlathe phakathi kwama-70 no-140 mg.

Icala elibi lekofu yangoko nangoko kukwenziwa kweekhemikhali. Iqulethe i-acrylamide, ikhemikhali enokuba yingozi eyenzeka xa zosiwe iimbotyi zekofu. Ikofu yangoko nangoko inokuba neekhemikhali eziphindwe kabini kunekofu yesiqhelo. Inokubanakho ukonakalisa inkqubo ye-luvo kunye nokunyusa umngcipheko womhlaza ukuba amanqanaba aphezulu asetyenzisiwe (nge I-MSN ). Nangona kunjalo, inani le-acrylamide kwikofu lingaphantsi kwemali eboniswe ukuba iyingozi kuyo izifundo .

Iinguqulelo zokuqala zekofu yangoko nangoko

Iifolgi, ikofu yangoko nangoko UJustin Sullivan / Getty Izithombe

Iinguqulelo zokuqala zekofu yangoko kwangoko zibuyela emva ngo-1771, ngokukaMark Pendergast kwi I-Oxford Companion yokutya kunye nokusela kwaseMelika . Kwaku malunga neminyaka engama-200 emva kokuba ikofu yaziswa eYurophu, kwaye iGreat Britain yanikezela ngelungelo elilodwa lomenzi wechiza 'lekofu' kuJohn Dring (nge Iphephancwadi iSmithsonian ).

Ke, ngasekupheleni kwenkulungwane ye-19, inkampani eGlasgow yasungula imveliso ebizwa ngokuba yiCamp Coffee, eyayiyinto engamanzi 'eyenziwe' ngamanzi, iswekile, ikofu kunye ne-chicory. Njengemveliso yabathengi, inguqulelo yeCamp Coffee ifike kwintengiso yentengiso e-Great Britain phakathi-ukuya-ngasekupheleni kweminyaka yoo-1800.

E-United States, eyokuqala eyabhalwa ikofu kwangoko yenzekile ngexesha leMfazwe yamakhaya kunye namajoni afuna iindlela zokwandisa amandla abo ekwakulula ukuwaphatha.

Malunga ne-1800s eSan Francisco, uJames Folger kunye noonyana bakhe baqala inkampani eyaziwayo yekofu. UFolger wathengisa iimbotyi zokuqala zomhlaba ezingafunekiyo ukuba zosiwe kwaye zigungxulwe ekhaya, into eyayisenza ikofu isele ngumsebenzi, ukuzama ukubambisa abavukuzi ngexesha leGold Rush.

Ikofu ekhawulezileyo iyafumaneka ngokuthengisa

I-Nescafe, ikofu ekhawulezileyo Ifoto nguDrew Angerer / Getty Izithombe

Inkampani ke yaba yenye yezona zinto zimbini zaziwayo zekofu eMelika. Owesibini nguMaxwell House. Ngelixa kungekho nkampani inokuzisa ikofu kwangoko de kube semva kweMfazwe yesibini (II) yeHlabathi, bayilungisa indlela ngomxube weembotyi zekofu zomhlaba ezenza ukuba kube lula ngakumbi ukwenza ikofu.

Ngo-1906, uCyrus Blanke wazisa umgubo wekofu kwintengiso yentengiso. Ngomnyaka we-1910, umfuduki waseYurophu ogama linguGeorge Washington (ayinguye lowo) wacoca iikristale zekofu ezivela kwikofu egqityiweyo kwaye wazisa ikofu yokuqala yokuthengisa kwangoko e-United States, eyathi ke yathandwa ngexesha leMfazwe Yehlabathi I ngokulula kwayo.

Ukuphuculwa okukhulu okulandelayo kwikofu yangoku kwangoko kwafika ngo-1938 xa uNestle wasungula iNescafe. Yenziwe ngokutshiza ikofu engamanzi kwiinqaba ezishushu. Iintsalela zaba yikofu xa ziphinde zavuselelwa. Isenye yeemveliso zekofu ezithandwayo kwangoko kwimarike. Ngo-2012, iNescafe yenza iipesenti ezingama-74 zentengiso yekofu yangoko nangoko.

inja yesonka samasi abafana abahlanu

Ikofu ekhawulezileyo igcina uninzi lwezibonelelo zezempilo ezinxulunyaniswa nekhofi eqhelekileyo. Iqulethe ii-antioxidants ezininzi, ezinokubakho nangaphezulu kwekofu yesiqhelo ngenxa yenkqubo yokupheka (nge Unyango lwezempilo ). Izifundo zibonisa ukuba nayo inokuba negalelo ukuphucula ukusebenza kwengqondo kwaye ukwanda kwemetabolism . Abantu abasela ikofu nabo banamathuba amancinci okuba baphuhlise izifo ezithile ze-neurodeergenerative, ezinje nge-Alzheimer's kunye ne-Parkinson, kwaye basemngciphekweni omncinci isifo seswekile kwaye izifo zesibindi ezifana nesibindi kunye nomhlaza wesibindi.

Ukuthandwa kwekofu yangoko nangoko kwihlabathi liphela

ikofu yangoko nangoko, iipakethi zekofu nangoko

Intengiso yekofu ekhawulezileyo iyanda kwihlabathi liphela- kwaye iyabonisa eTshayina. Ngaphambili, i-China yayisaziwa ukuba isela malunga neekomityi ezimbini zekofu ngonyaka ngomntu ngamnye (ngamanye amagama, isixa abantu abasela kakhulu ngaphambi kwesidlo sasemini), kwaye ngoku iyimarike yesine ngobukhulu yekofu yangoko nangoko, ekwabizwa ngokuba ilungele ukusela (RTD) kofu.

I-Russia ikwindawo yentengiso yekofu evelayo. Ikofu yangoku nje yindawo yokungena efikelelekayo kwesi siselo, enokubiza imali eninzi ukuyithenga ngeembotyi zonke. Umzi mveliso wekhofi weRTD umile eUnited Kingdom, othe wachitha ikofu kwangoko amashumi eminyaka.

Nokuba uyayithanda okanye awuyithandi ikofu yangoko, yiyo ngu ikofu yokwenyani kwaye ngokuqinisekileyo ilunge ngakumbi kunokusela ikofu kwiimbotyi ezipheleleyo.

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