Problem to be solved: to provide a storage box capable of forming an electric field in the accommodation space while suppressing the reduction in the load amount.The container 1 has a container body 2 having a storage space 20 for accommodating an object, an electrode 5 for forming an electric field in the storage space 20, and the electrode 5 is embedded in the container body 2.The electrode 5 is plate-like.The container body 2 has a floor portion 24, a ceiling portion 25 opposed to the floor portion 24, a side wall portion 26 for connecting the floor portion 24 and the ceiling portion 25, and the electrode 5 is embedded in the ceiling portion 24.The ceiling portion 25 has an insulating heat insulating material 23 and an outer wall 22 provided outside the heat insulating material 23, and the electrode 5 is embedded in the heat insulating material 23.Diagram
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