Mu 1938, Nestle idatengera kuyanika kwapamwamba kopangira khofi nthawi yomweyo, kulola ufa wa khofi wanthawi yomweyo kusungunuka mwachangu m'madzi otentha. Kuonjezera apo, voliyumu yaying'ono ndi kukula kwake kumapangitsa kukhala kosavuta kusunga. Chifukwa chake zakula mwachangu pamsika waukulu. Pakali pano mitundu yotchuka ya khofi pompopompo ikuphatikiza Nestle, Maxwell, UCC, etc.
Njira yopangira khofi nthawi yomweyo
Khofi wa Instant ndi chakumwa cholimba cha khofi chomwe chimakonzedwa ndi kuwotcha ndi kuphwanya, kuchotsa zinthu zosungunuka ndi madzi, kenako kuyanika ndi mpweya wotentha kapena kuumitsa. Ndizosavuta kusungunuka m'madzi ndikubwerera ku khofi wamadzimadzi wokhala ndi kukoma koyambirira komanso kukoma. Njira yopanga ndi motere: kuyang'ana nyemba za khofi, kuchotsa zonyansa, kuwotcha, kugaya, kuchotsa, kuika maganizo, kuyanika, kuyika.
II. Mfundo zazikuluzikulu za Instant Coffee Production Process
(I) Kuchiza Chisawawa cha Nyemba za Khofi
Choyamba, zopangira ziyenera kusankhidwa mosamala. Nyemba za khofi zatsopano zimakhala zowala, zozungulira komanso zofanana kukula kwake, osaphatikizapo nkhungu, zofufumitsa, zakuda, zodyedwa ndi nyongolotsi, nyemba zosweka kwambiri ndi zina zotsika, komanso zonyansa zosiyanasiyana monga zipolopolo zambewu, midadada, matabwa, miyala, ndi zitsulo. Pofuna kuonetsetsa kuti zili bwino, kupatukana kumatha kuchitidwa pogwiritsa ntchito zowonera, kuthamanga kwa mphepo kapena kutulutsa vacuum.
(II) Kuwotcha
Kuwotcha ndi njira yotsimikizika yopangira kukoma ndi mtundu wa khofi wanthawi yomweyo. Malonda a nyemba za khofi amatengera theka la chowotcha moto kapena chowotcha mpweya wokhala ndi zipinda zowotcha ngati ng'oma yozungulira. Kutentha kwa kuwotcha ndi nthawi yowotcha ndi zinthu zofunika kwambiri.
Kutalika kwa nthawi yowotcha kumasiyana osati chifukwa cha mitundu yosiyanasiyana ndi mtundu wa khofi, komanso zimadalira kuchuluka kwa kuwotcha kofunikira kwa mankhwala omaliza. Kuwotcha kwakanthawi kochepa kumawonetsa kuti nyemba za khofi ndi zofewa komanso acidity yolimba, kuwawa kofooka komanso kutulutsa kosavuta pambuyo popera. M'malo mwake, nthawi yowotcha nthawi yayitali ikuwonetsa kuti nyemba za khofi ndi crispy ndi acidity yofooka, kuwawa kwakukulu komanso kusachita bwino pakuchotsa ufa wabwino kwambiri.
Kuwotcha kosakwanira kumapangitsa kuti pakhale fungo labwino, mtundu wosakwanira wa chinthu chomalizidwa komanso kutsika kochepa; Kuwotcha kwambiri kumapangitsa kuti mafuta azichulukira, zomwe zingalepheretse kutulutsa ndikusokoneza ntchito yowumitsa. Chifukwa chake, mikhalidwe yabwino yakuwotcha iyenera kutsimikiziridwa ndi mtundu wazinthu, fungo, zokolola, magwiridwe antchito azachuma komanso zida zopangira zida.
Nyemba za khofi zikafika pakuwotcha kofunikira, zimitsani moto, siyani kutenthetsa, ndikuziziritsa nyemba za khofi nthawi yomweyo. Chifukwa ngakhale kutentha kutayimitsidwa, kutentha mkati mwa nyemba za khofi kumapitiriza kuwotcha kwa kanthaŵi, kotero kuti nyemba za khofi zitatsanuliridwa m’chipinda chowotcha ng’oma, chotenthetsera chotulutsa mpweya chiyenera kuyatsidwa kuti chiziziritsa kuti kutentha kusakwere. M'makampani, madzi ena ozizira amawathira m'chipinda chowotcha kuti azizirike, kenako nyemba za khofi zokazinga zimatulutsidwa m'chipinda chowotcha kuti ziziziziritsa.
(III) Kusunga Kokhazikika
Ndi bwino kusunga nyemba za khofi zokazinga kwa tsiku limodzi kuti mpweya woipa wa carbon dioxide ndi mpweya wina usunthike kwambiri ndi kumasulidwa, komanso kumayamwa mokwanira chinyezi chamumlengalenga kuti chifewetse nyemba, zomwe zimathandiza kuti zichotsedwe. Kukula kwa kukula kwa tinthu ting'onoting'ono kumakhudzana ndi zida zochotsa zomwe zimagwiritsidwa ntchito. Tinthu tating'onoting'ono tating'onoting'ono tating'ono tating'ono tating'ono tating'ono tating'onoting'ono timalepheretsa kusefera kotsatira pomwe tinthu tating'onoting'ono timavuta kutulutsa koma kosavuta kusefera. Nthawi zambiri, m'mimba mwake wa tinthu tating'ono ta khofi ndi pafupifupi 1.5 mm.
(IV) Kuchotsa
Kutulutsa ndi gawo lovuta kwambiri lapakati pakupanga khofi nthawi yomweyo. Zida zomwe zimagwiritsidwa ntchito pochotsa zimatchedwa chotsitsa, chomwe chimakhala ndi akasinja 6 mpaka 8 olumikizidwa ndi mapaipi ndipo amatha kupangidwa mosinthana kukhala gawo lopangira opaleshoni.
(V) Kulekanitsa Kwamadzi-Cholimba
Madzi a khofi ochotsedwa adzakhala ndi zolimba zambiri zotsalira. Izi zimafuna kulekanitsa kolimba kwamadzimadzi amadzimadzi a khofi asanatengedwe kupita ku njira ina. Wolekanitsa gulugufe akhoza kukwaniritsa chofunika kulekana kwenikweni ambiri.
(VI) Kukhazikika
Kuyikirako kumagawidwa mu vacuum concentration, centrifugal concentration ndi chisanu kwambiri. Pofuna kukonza kuyanika bwino, kuchepetsa ndalama za zida ndi kugwiritsa ntchito mphamvu, ndende yolimba imafupikitsidwa kuti ifike kupitilira 35%. Kuchuluka kwa vacuum kumachepetsa kuwira kwa madzi kufika pafupifupi madigiri 60 mu vacuum pressure kuposa 0.08Mpa. Choncho kuti madzi ndi anaikira mofulumira. Wokhala pakati kodifendi sludzu concentrationmitaimathandizira kugwiritsidwa ntchito mobwerezabwereza komanso kuvutitsa kutsimikiza kokhazikika pakuwunika kwake kolondola kwambiri munthawi yeniyeni. Kuchuluka kwa chidwi nthawi zambiri sikudutsa 60% (refractometer). Popeza kutentha kwa madzi ochuluka omwe akutuluka munsanja ya evaporation ndi apamwamba kuposa kutentha kwa chipinda, ayenera kuziziritsidwa asanatumizidwe ku thanki yosungiramo kuti achepetse kutaya.
(VII) Kuyanika Utsi
Madzi amadzimadzi amanyamulidwa mwachindunji pamwamba pa nsanja yowumitsira utsi kudzera pa mpope wopondereza, kupopera mu nkhungu ndi mfuti yopopera, ndikuumitsa kukhala ufa pansi pa kutentha ndi mpweya wotuluka pafupifupi 250 ° C. Umisiri wowumitsa kapena kuzizira ungagwiritsidwenso ntchito poyanika. Amaundana kuyanika luso ndi amaundana ndi khofi tcheru pa kutentha otsika, ndi madzi mmenemo ataundana mu zabwino ayezi galasi particles, ndiyeno mkangano ndi sublimated pansi pa mikhalidwe zingalowe mkulu kukwaniritsa cholinga cha otsika kutentha kuyanika. Pambuyo pokonzekera, chithandizo chowonjezera chofunikira chikhoza kuchitidwa pamaganizo, ndipo chikhoza kupangidwanso kukhala chakumwa chamadzimadzi.
Dinani apa kuti mudziwe zambirimayankho a inline ndende monitoring. Kapena mutha kulumikizanaLonnmetermolunjika ndi zofunikira zanu zenizeni.
Nthawi yotumiza: Feb-10-2025
