According to the source of oil, edible oil can be roughly divided into animal oil and vegetable oil. When choosing edible oil, you can choose animal oil and raw oil according to your own needs. Let's first understand the difference between these two kinds of edible oils.
Animal oil is extracted from animal fat, such as lard, sheep oil, butter, etc. Compared with vegetable oil, animal oil has a special fragrance, which is irreplaceable by any vegetable oil.
Even without meat, many dishes can be fried with animal oil, which contains nutrients and calories that vegetable oil does not have. For example, the lard bibimbap and vegetable oil residue in my childhood memories are all made of animal oil, which is delicious and memorable.
Everyone is no stranger to vegetable oil. In daily life, the oil people eat is basically vegetable oil, that is, edible oil extracted from fruits, germs and seeds of plants by squeezing or leaching.
Vegetable oils are divided into herbal oils and woody oils according to the different raw materials used, such as soybean oil, rapeseed oil and peanut oil. , that is, people often eat, woody oils include palm oil, walnut oil, camellia oil and coconut oil.
Shelf life of edible oil
Generally, the shelf life of edible oil is 18 months, subject to the unopened packaging. The shelf life of edible oil will be shortened accordingly after opening, and it is best to eat it within 3 months. You can't eat any edible oil beyond the shelf life, especially crude edible oil, which will contain more plant residues. If it is allowed to pass, the residue may rot and deteriorate, which will bring adverse effects to the human body after eating.
The bought oil should be stored in a dark place. Light will accelerate the oxidation and rancidity of the oil, so it is best to store the bought oil in a special dark place to facilitate the use of oil. Don't put it by the stove. The high temperature near the stove will accelerate the oxidation and rancidity of oil, so it must be placed in a cool and dry place.