Ezobuciko beCulinary, igama elithi IQF lisho "ukunqunywa okusheshayo ngabanye."
Ukudla kwe-IQF kuyaphawuleka ngoba ucezu ngalunye lokudla lufriziwe ngokwehlukana kuzo zonke ezinye. Ngakho-ke isibonelo, isikhwama se-IQF se-peas asigcini nje ngokuvimba i-peas efriziwe, kodwa kunalokho, i-peas ngayinye efriziwe ivulekile ngaphakathi kwesikhwama. Kusobala ukuthi lokhu kwenza ukudla kwe-IQF kube lula ukusebenza.
Enye i-IQF "i-flash-frozen."
Izibonelo zokudla kwe-IQF zizithelo ezinjenge-blueberries, ama-strawberry, nama-peaches; imifino efana nommbila, i-peas, nobhontshisi obuluhlaza ; Izinhlanzi zasolwandle njengezinhlanzi nezikhwama ; noma izinkukhu, njengezikhumba zezinkukhu ngabanye.
Ngisho nezinkukhu ezigcwele, njenge- turkeys efriziwe , ziyasetshenziswa ngokusebenzisa indlela ye-IQF.
Indlela yokudla efriziwe ngendlela ye-IQF ihilela ukuthumela izinto zokudla ngabanye ngendlela efana nebhande lokudlulisa elingaphansi kwefriji-frizer eliqeda leyo nto ngokushesha. Ngenxa yokuthi izinto zokudla zihlukene uma zingena, zihlala zihlukile uma seziqhwa.
IQF isebenza kanjani?
Le nqubo yasungulwa isazi sezinto eziphilayo, ngenkathi ukudoba kweqhwa eCanada ngezinsuku ezingama-40 degrees-ngezansi-zero, kwaqaphela ukuthi inhlanzi ayidonsa emanzini ngaphansi kweqhwa yayizoqothula ngokushesha lapho ephosa eqhweni. Okumangalisa nakakhulu, kodwa, kwakungenxa yokuthi ezinye zalezi zinhlanzi zazizobe zisaphila ngemuva kokuba zithathwe.
Lo mphumela omangalisa uhlobene nokuthi iqiniso lokuthi uma into ekhululeka ngokushesha, idala ama-crystals amancane kuneqhwa uma ihamba kancane kancane. Ama-crystal amakhulu amakhulu awonakalisa amangqamuzana namafucu omzimba. Lapho lezo zinhlanzi zivutha ezimweni ezingama-40 ngaphansi kwe-zero, amakristalu e-ice ayencane kakhulu ukuze aphule izindonga zamaseli, ngakho ezinye izinhlanzi zasinda.
Le miso efanayo isebenza ne-IQF noma ukudla okuneqhwa. Isizathu sokudla siyancipha uma seqhwa ngenxa yokuthi ama-crystals amakhulu e-altare awonakalisa amafayili okudla, ukuze aqede futhi aqome, ngoba amakristalu e-ice agcizelele imicu, ephoqelela okuqukethwe kwamanzi okudla avela ezindongeni zamaseli aphukile.
Ukuqeda ukudla okusheshayo kuveza ama-crystals e-ayisika amancane, ngakho-ke angabangeli umonakalo emafibeni okudla.
I-IQF iyancipha i-Ice Crystallization
Ngokuqondile, lokhu kungenxa yokuthi ama-crystals eqhwa kuphela afana phakathi kuka-31 no-25 degrees Fahrenheit. Futhi isikhathi esiningi sokudla esithengisa kulesi sigaba sokushisa, kuzokwenziwa ama-crystal amaningi.
Isihluthulelo ku-IQF siyasheshisa ukudla ngale ndawo yokushisa ye-31 kuya ku-25 F ngokushesha ngangokunokwenzeka.
Isibonelo, kungathatha amahora ayishumi ukufakela iphakheji lenhlanzi ngeqhwa elijwayelekile (okusho ukuthi ulifaka efrijini lakho ekhaya). Kodwa usebenzisa ubuchwepheshe be-IQF, kungathatha imizuzu engu-90 kuphela. Kodwa ngokuphambene, esikhundleni sokuchitha amahora ayisithupha (angaphezu kokuyishumi) amahora angama-31 kuya kwangu-25 ngendlela evamile, ichitha imizuzu engu-25 lapho kuphela usebenzisa i-IQF.
Ngendlela, igama le-biologist yokudoba i-ice elitholile futhi lasebenzisa le nqubo ekudleni okupakishwe ngokudayisa: Clarence Birdseye.