I did this since the 90s. A bunch of relatives got sick from some filthy cans. Then I worked in a liquor warehouse. In the unmopped piss floor bathroom where every guy stands farther back to not stand in the dribble, eventually the one guy that doesn't care stands in it, none of them wash their hands, then they even stand on the cans as they build their pallets higher. Not to mention the one top rack pallet that leaks down getting everything sticky and moldy, and the mouse and rat nests with their piss and shit all over the place both in the product and the fork pockets of pallets which get lifted above all the others and it trickles down. The mop tank roams around but it only cleans the lanes and not under the racks or anything. Piss and shit cans at best get taken to a bay with no truck and compressed air blasted, or maybe to the throwaway area and hosed down but it's just water until visually clean looking. Some days you can call in a bay with dirty product and the guy shows up to just dust it to the lane with canned air for the mop tank.

Even guys that work there just drink cans without washing, but some of them are piss drinkers that think the government doesn't want them to drink their own piss so they don't develop psychic powers. I've been told if you don't drink your piss your third eye crystallizes and atrophies. And everything is connected and we are all one, etc.

Basically I recommend washing the cans at least.