1. Ntau huv tau txiav
Thoob plaws hauv cov txheej txheem txiav, ua kom sov ntau dua, tsis muaj teeb meem thiab ntau qhov teeb meem zoo dua, ua rau muaj teeb meem ntau dua,
2. Txiav kev zoo dua
Vim yog cov khoom lag luam tsis muaj cua sov, oxidation, kev hloov pauv ntawm cov khoom, nws tuaj yeem tiv thaiv cov khoom siv uas xav tau los tiv thaiv cov khoom siv cov khoom thiab cov khoom txiav ua tau.
3. Nyob deb
Siv lub siab - cov khoom siv tiv taus ntev dua nyob rau hauv cov hniav tsis zoo, nws tuaj yeem siv rau lub sijhawm ntev, nws tuaj yeem siv nyiaj ntev, txo tus nqi ntawm kev yuav khoom tshiab txhua lub sijhawm.
4. Kev nyab xeeb siab
Raws li rau nws, thaum txiav tawm cov khoom uas nws tsis tsim ib qho kev pheej hmoo, nws tsis yooj yim rau cov neeg siv hluav taws xob, nws tsis yooj yim rau cov neeg muaj kev phom sij, ua kom muaj kev phom sij, ua kom muaj kev phom sij, ua rau tus neeg siv.
5. Kev ua tau zoo rau ib puag ncig
Vim tias tsis muaj txim taws tsim thaum siv nws, kuj muaj cov hmoov av thiab tsawg dua los txo qee qhov kev kho mob kom muaj kev txhim kho thiab kev noj qab haus huv.
