Can edible oil be eaten after expiration? How long is the shelf life of unsealed edible oil
4hw.com.cn: edible oil is the most common consumable in our life. Many friends will buy two barrels home when they encounter supermarket discounts or preferential activities. However, edible oil has a shelf life. Can edible oil be used after the shelf life? Let's have a look.
Can edible oil be eaten after expiration
Like other foods, edible oil also has a shelf life, and eating expired edible oil will do harm to human body. What edible oil is most afraid of is oxidation and rancidity, resulting in a Hara flavor. After the oil is rancid, it is smoky and choking when heated, including the decomposition product epoxy propionaldehyde, which is easy to be poisoned after eating. Expired edible oil will be oxidized to produce lipid peroxide, which is not only bad for blood vessels, but also carcinogenic. So do not eat edible oil, whether it is opened or unopened, once it has expired.
How to judge the expiration of edible oil
It smells fishy
When we judge whether the edible oil is not within the shelf life, we can also judge by smelling the edible oil. The edible oil in the shelf life does not smell any peculiar smell, and the expired or deteriorated edible oil smells fishy. If you encounter edible oil that smells fishy, you are not recommended to use it.
The cooking tastes of La
When we judge whether the edible oil is within the shelf life, we can also taste whether the cooked food has a spicy taste. The dishes made of fresh edible oil in the shelf life will taste very good, while the dishes made of expired or deteriorated edible oil will have a Khara taste.
Large oil fume
When we judge that the edible oil is not within the shelf life, we can judge it by the oil fume of the edible oil when cooking. Fresh edible oil with a shelf life has very little lampblack when cooking. If we encounter that kind of oil fume when cooking, it may be that the edible oil has expired or deteriorated.
Viscosity
We can judge whether the edible oil is within the shelf life by observing the viscosity of the edible oil. The viscosity of fresh edible oil within the shelf life is very normal, while the viscosity of expired or deteriorated edible oil will become thinner or thicker than that of normal edible oil. You can judge whether the edible oil is within the shelf life by observing the viscosity of edible oil.
How long can edible oil be kept unsealed
The study found that under normal living conditions, edible oil without antioxidants will generally reach the critical point of deterioration after 2 months in Kaifeng. In a few days, there will be a unique 'Hara flavor' of oil rancidity. Edible oil added with antioxidants can be stored for a longer time after opening the cover, but there is no research conclusion on how long. Generally, it is recommended that you eat it within 3 months.