Provided are: a culture medium, a fungus bed, and a bagged fungus bed in which the occurrence of mold is inhibited; and a method for manufacturing the same. The culture medium includes one or more types of Bacillus, Ewingella, and Pseudomonas bacteria. This fungus bed is one in which the aforementioned culture medium is inoculated with an inoculum, and this bagged fungus bed is one in which the aforementioned fungus bed is housed in a film bag provided with micropores. This culture medium manufacturing method incudes a step for heating a substrate in a storage container and a step for feeding air into the storage container. This fungus bed manufacturing method is a method for inoculating a culture medium manufactured by the aforementioned culture medium manufacturing method with a mushroom inoculum. This bagged fungus bed manufacturing method is a method for housing the fungus bed in a film bag provided with a plurality of micropores.
