Interesting question. I would say no. The new wet bowl will disrupt the drying of the older turned bowl and the newlly turned bowl might loose moisture too fast with the partly dried bowl in the same bag. If you turned two bowls on the same day they should be ok in the same bag but I would put them in different bags to prevent mold. If one of the bowls has mold on it then both will get mold if they are in the same bag. In different bags only one gets the mold. A wipe with Clorox kills the mold.