2, in addition, you can also try at room temperature: oil immersion method, animal oil (pig and cow) vegetable oil can be. After the oil is heated, let it cool to about 60 degrees, and the cooked meat cooked and dried is immersed in the liquid level of the oil. Use oil to isolate the air, reduce the chance of infection of cooked meat and extend the shelf life. Or, the cooked meat can be air-cooled and packaged in vacuum-evacuable food-grade plastic bags or locked containers, which can also extend the shelf life.