Thaum cov neeg nyiam tshuaj yej tuaj hla cov tshuaj yej zoo, lawv feem ntau yuav qee yam khaws cia hauv tsev-kom saj ib khob hauv lawv lub sijhawm so lossis brew lub lauj kaub thaum cov phooj ywg tuaj xyuas… khaws tshuaj yej, yog li ntawd, yog ib txoj haujlwm uas yuav tsum tau saib xyuas ntau yam.
Yog tias khaws cia tsis raug, koj tuaj yeem pom tias thaum koj brew nws dua, qhov tsw txawv kiag li ntawm qhov nws tau xub pib. Uas yuav txaj muag. Hauv qab no, peb yuav piav qhia ntxaws yuav ua li cas khaws tshuaj yej hauv tsev.
Nkag siab txog cov ntsiab lus tseem ceeb uas ua rau cov tshuaj yej Deterioration
01. Lub teeb
Kev raug rau lub teeb tuaj yeem ua kom muaj ntau yam tshuaj tiv thaiv, uas yuav ua rau muaj kev cuam tshuam tsis zoo rau cov tshuaj yej cia; yog li ntawd, tshuaj yej yuav tsum khaws cia deb ntawm lub teeb.
02. Kub
Qhov kub siab dua, cov tshuaj yej yuav muaj hnub nyoog sai dua. Cov txiaj ntsig kev sim qhia tau hais tias rau txhua txhua 10-degree nce hauv qhov kub thiab txias, tus nqi ntawm cov tshuaj yej laus nce los ntawm qhov zoo ntawm 3 txog 5.
Yog tias cov tshuaj yej khaws cia hauv lub khw txias ntawm qhov kub qis dua 10 degrees, cov txheej txheem browning tuaj yeem ncua sijhawm.
03. Moisture
Cov dej noo yog ib qho tseem ceeb ntawm ntau yam tshuaj tiv thaiv uas tshwm sim thaum lub sij hawm laus ntawm cov tshuaj yej. Kev tshawb fawb qhia tias thaum cov dej noo ntawm cov tshuaj yej nyob ib ncig ntawm 3 feem pua, oxidation thiab deterioration ntawm lipids tuaj yeem ua tau zoo. Txawm li cas los xij, thaum cov dej noo ntau tshaj 6 feem pua, tus nqi ntawm kev laus nrawm nrawm heev.
04. Oxygen
Oxygen tuaj yeem cuam tshuam nrog ntau yam tshuaj lom neeg hauv tshuaj yej, ua rau lawv oxidise thiab deteriorate. Piv txwv li, catechins, vitamin C, tshuaj yej polyphenols, theaflavins, thearubigins thiab esters hauv tshuaj yej yog tag nrho cov raug oxidation thiab deterioration; yog li ntawd, tshuaj yej yog qhov zoo tshaj plaws khaws cia rau hauv ib qho chaw oxygen -dawb ib puag ncig.
Cov ntsiab lus tseem ceeb rau khaws cov tshuaj yej
Tiv thaiv los ntawm siab, noo noo, thiab ntxhiab tsw; khaws cia thiab nyob deb ntawm qhov kaj.
Feem ntau, cov aroma thiab tsw ntawm tshuaj yej yuav hloov mus rau qee qhov tom qab cia; Txawm li cas los xij, yog tias raug qhov kub thiab txias, cov av noo los yog ncaj qha tshav ntuj, cov tshuaj yej yuav muaj hnub nyoog thiab deteriorate nyob rau hauv ib lub sij hawm luv luv.
