Most likely not, only some scents are 'heavy' enough to cover the smell of drugs. (Unless maybe you mixed it into the drugs, but that's probably worse than the drugs already are.) Usually things like coffee are used to cover the scent, aother effective (though seems to be less used) option is pepper, especially if finely ground (red pepper works even better). The dogs are now being trained to signal with suspicion on the commonly used cover scents as well. So it's becoming less effective to use them anyway. Probably the most effective way would be to completely seal the container (with glue or wax), then clean it very well with hot water and soap. For a guy who barely drinks and only smokes occasionally, I sure did put a lot of thought into that. I think I need a better hobby, lol.