1. Hoʻopaʻa ʻia ka ʻeke ea i ka ea, hoʻopau i ka ʻino microbial a hoʻemi i ka hoʻohui preservative.

Nui nā mea hoʻonaninani ma ka mākeke i nā waikawa amino, nā protein, nā antioxidants, makaʻu i ka lepo, bacteria a me ka pilina me ka ea. Once contaminated 'a'ole wale lilo i ka hopena kumu, a hiki i ka pōʻino. Akā ʻo ka puka ʻana o ka ʻōmole airless he hopena maikaʻi ia i kēia pilikia, ikaika loa ke ʻano o ka hoʻopaʻa ʻana o ka hue wai ʻole, hiki ke hoʻokaʻawale maikaʻi ʻia mai ka lewa, mai ke kumu e pale aku ai i ka hopena o ka hoʻohaumia ʻana e nā microorganism o waho, a hiki ke ʻoi aku ka hoʻohaʻahaʻa ʻana i nā preservatives, ʻoluʻolu loa ka lehulehu o ka ʻili intolerant.

2. E hōʻalo i ka wikiwiki oxidative inactivation o nā mea hana, i ʻoi aku ka paʻa o nā mea hana, e mālama i ka "hou" o nā huahana mālama ʻili.

ʻO ka maikaʻi o ka ea o ka'ōmole airless hiki ke pale i ka nui o ka pilina me ka oxygen, e kōkua ana i ka ho'ēmiʻana i ka wikiwiki o ka oxidative inactivation o nā mea hana, e mālama i ka "hou" o nā huahana mālamaʻili. Hoʻohui pinepine nā mea hoʻonaninani i ka VC, nā mea kanu mea kanu, polyphenols, flavonoids a me nā mea ʻē aʻe ʻaʻole paʻa, maʻalahi i ka oxidative inactivation o ka pilikia.