Faʻaaogaina i le tele o vaega, e pei o le: "zero tuʻuina atu" vaifofo mo fale gaosi vai otaota, Evaporation ma le faʻatonuga mo le faʻagasologa o pisinisi, faʻafefeteina o meaʻai (aginomoto, citric acid, starch ma suka), fale talavai (sauniga Chinesemedicine sauniuniga, maualalo le vevela concentration o vailaau i sisifo. ), vailaʻau lelei (pesticide, synthetic dyes, organic pigments, vali, mea manogi ma fatu, cosmetic), vailaʻau chlorine (vai masima faʻamaʻi), suasami faʻamaʻi ma metallurgical alamanuia, ma isi.
1, maualalo le faʻaaogaina o le malosi, maualalo le tau o galuega
2, Laititi avanoa avanoa
3, Manaomia le itiiti ifo o mea faigaluega lautele ma itiiti le aofaʻi o tupe faʻafaigaluega
4, Faagaioiina mautu ma tulaga maualuga o le masini
5, Le manaʻomia le ausa muamua
6, Puupuu taimi taofi ona o le masani ona faʻaaogaina tasi aafiaga
7, Faʻagasologa faigofie, faʻatinoina maualuga, ma le lelei tele o auaunaga i nisi o avega
8, Tau fa'agaioiga maualalo
9, E mafai ona fa'asao i lalo ifo o le 40 celsius e aunoa ma se fale fa'aaisa ma o lea e talafeagai lelei mo mea vevela.