Lub khob cij yog ib lub hnab siv los ntim thiab tiv thaiv cov khob cij. Cov haujlwm nquag muaj xws li cov hauv qab no.
1. Freshness preservation: Lub hnab cij tuaj yeem tswj tau qhov tshiab ntawm qhob cij. Lub khob cij feem ntau yuav siv sij hawm ib ntus kom muag tom qab ua tiav, thiab lub hnab khob cij tuaj yeem tiv thaiv lub khob cij los ntawm kev tiv thaiv cov cua sab nraud, ua kom lub khob cij kom qhuav, thiab ua kom lub neej ntev ntawm lub khob cij.
2. Moisture-pov thawj: Lub hnab cij feem ntau yog ua los ntawm cov ntaub ntawv uas muaj huab cua zoo permeability, uas tuaj yeem tiv thaiv lub khob cij kom tsis txhob ntub thiab tuav lub saj thiab kev ntxhib los mos ntawm lub khob cij.
3. Kev tiv thaiv kev ua qias tuaj: hnab cij tuaj yeem tiv thaiv cov khob cij los ntawm cov plua plav, cov kab mob thiab lwm yam kab mob, ua kom muaj kev nyiam huv thiab kev nyab xeeb ntawm lub khob cij.
4. Ib qho yooj yim mus nqa: hnab cij feem ntau yog lub teeb thiab nqa tau yooj yim, ua kom yooj yim rau cov neeg siv khoom nqa mus tsev lossis nqa thaum tawm mus tom qab yuav mov ci. Qhov no tiv thaiv lub khob cij los ntawm kev nyem los yog kis kab mob thiab tswj kev ncaj ncees thiab zoo nkauj ntawm lub khob cij.
5. Kev tshaj tawm thiab kev tshaj tawm cov khoom lag luam: Cov khob cij hom, logos thiab lwm yam ntaub ntawv feem ntau yog luam tawm ntawm lub hnab khob cij, uas tuaj yeem siv los ua ib txoj hauv kev tshaj tawm thiab tshaj tawm cov khoom lag luam. Thaum cov neeg siv khoom yuav cov khob cij, lawv yuav pom cov ntaub ntawv ntawm cov khoom lag luam ntawm lub khob cij, yog li ua kom cov khoom lag luam paub txog thiab nthuav tawm.
