The shelf life of edible oil is generally 18 months, but the shelf life of edible oil after opening is usually 3 months.

The edible oil beyond the shelf life produces oxidation reaction, which reduces the content of unsaturated fatty acids, increases the small molecular oxides, reduces the nutritional value and makes the taste worse. For oils such as peanut oil and corn oil, aflatoxin is likely to be produced due to mold infection after long-term opening. Cooking oil needs to be kept away from light and sealed, and it needs to be kept away from high temperature. Kaifeng cooking oil should be eaten as soon as possible to avoid deterioration for too long.

Never eat edible oil that has gone bad for too long. If you accidentally eat bad cooking oil, please go to the hospital for examination and timely treatment. Generally speaking, the home-squeezed "earth-squeezed" rapeseed oil, peanut oil, etc., without preservatives and without refining and impurity removal steps, will appear serious rancidity after being left for 2 months and produce unpleasant "spicy taste", which is no longer suitable for eating.

Edible oil brand:

1. Arowana

started in 1991, and is a well-known grain and oil brand under Fengyi International. Its products cover many fields such as small package edible oil, rice, flour, dried noodles, condiments, milk, soy milk, catering oil, special grease, grease technology and so on. Yihai Kerry Group, the abbreviation of enterprise group with Yihai Kerry Arowana Cereals, Oils and Foodstuffs Co., Ltd. as the core, is one of the professional small packaging oil producers in the world.

2. Lu Hua

Lu Hua is a well-known brand in the edible oil industry, with edible oil as the leading factor and a large-scale agricultural industrialization group spanning many industries such as edible oil, condiments and rice flour. Its Lu Hua olive oil is made of high-quality olive fruit from Spain, with the management strategy of "take it from the people and use it for the people", carefully selected high-quality raw materials planted by farmers in China, and refined through the original 5S squeezing process.