Large bottles of cooking oil is easily oxidized metamorphic

Cooking oil should not be in long-term storage, particularly vulnerable arising from oxidative deterioration because of light, heat or seal leakage and other reasons, affecting human health.

Edible oil bottle or pail shelf life base on the mouth tightly closed containers not leak as a precondition, the shelf life greater than one year, are generally required to add antioxidants.

Cooking oil is every day to the entrance you'll feel, oxidation can lead to excessive fat sour, rancid grease can lead to human liver enlargement and stunted growth, accelerated aging; peroxide value seriously overweight, can cause diarrhea and other gastrointestinal side effects, may also induce cardiovascular, cancer and other diseases.