Dab tsi yog qhov sib txawv ntawm cov zaub mov qhuav thiab cov zaub mov qhuav?
9 月-22-2021
Freeze-drying removes 98% of the water in foodswhile dehydration removes about 80% giving freeze-dried products a much longer shelf-life. Freeze-dried food is flash frozen and then exposed to a vacuum, which causes all the water in it to vaporize. Qhov no yuav tsum muaj cov cuab yeej kim thiab tsis yog qee yam koj tuaj yeem ua tau tom tsev, tab sis nws ua rau cov khoom noj khov rau 20 txog 30 xyoo, uas ib txwm kav ntev li tsib xyoos.
But the biggest difference between freeze-dried and dehydrated foods is nutritional.Freeze-dried foods retain all of taste, smell, texture, and nutritional value they has in their original form before the freeze-drying processCov. Cov zaub mov ua kom lub cev qhuav dej poob txog 50% ntawm lawv cov khoom noj khoom haus muaj txiaj ntsig vim tias lawv tau ua cov txheej txheem cua sov, txij li thaum lub sijhawm ua cua sov "ua noj ua haus" lawv nyob ntev li lawv qhuav.
Freeze-dried foods also rehydrate more quickly, usually in 5 minutesor less (dried berries, almost instantly), in hot or cold water. Cov zaub mov muaj hnub nyoog qis feem ntau siv sijhawm 10-20 feeb rau cov dej rov qab, muab koj siv cov dej sov, uas yog ob qho tib si ntawm kev siv hluav taws xob!