PROBLEM TO BE SOLVED: To provide cooked food capable of being preserved for a long period of time without requiring burdensome temperature management.SOLUTION: In the sealing body of cooked food for chilled preservation in which one kind or two kinds or more of cooked foods are packaged in a container while exchanging gas, the gas for gas exchanging packaging is a gas in which Ocontent is 1 volume% or less and COcontent is greater than 5 volume%, the cooked food contains organic salt, glycine, vitamin B1.
