Trash can odors are difficult odors to remove for most cleaning products. Trash cans, trash bins, garbage cans, trash compactors, garbage disposals, roll out containers and trash dumpsters all have consistent, persistent and lingering odors after you remove the trash and refuse from the receptacle.
Charcoal: Charcoal is on the top of the list of smell deodorizers as it is one of the best absorbent agents that can soak up the bad odor. Charcoal is also widely used as water filters and in most odor-removing commercial products. You can put a medium-sized chunk of charcoal inside your smelly patio for instance, and leave it there for a couple of days. You will notice that it can effectively remove the trash can smell.