I’d start by checking with the city or the property owner before touching a public can, because some municipalities have rules about who can clean, what runoff can go into storm drains, and how graffiti should be documented. Once you have the green light, treat it like a small restoration job rather than a quick wipe-down.
First, assess the can. Is it painted metal, powder-coated steel, plastic, or concrete? That changes everything. Harsh solvents can melt plastic or dull powder coating, and high pressure can blow paint off or force water into hinges and hardware. Put on nitrile gloves and eye protection, and if you’re using solvents, work outdoors or ventilate well and wear a respirator rated for the product. Empty the can, bag the trash, and remove loose debris first.
Then test any cleaner on a hidden spot. For light marker or spray paint, I like a citrus-based or eco-friendly graffiti remover. Apply it, let it dwell according to the label, and scrub with a stiff nylon brush—not a wire brush on plastic. For stickers or heavy paint, a plastic scraper helps. Wipe away loosened paint with rags and repeat rather than flooding the surface. If the can is metal and the coating is sound, low-pressure pressure washing with a wide nozzle can speed things up, but keep the wand moving and don’t blast seams, locks, or sensitive parts. Never let chemical runoff flow into a storm drain; contain it with absorbent pads or rags and dispose of waste as local rules require.
After cleaning, rinse thoroughly and dry the can before putting it back. If graffiti keeps returning, apply an anti-graffiti coating suited to the surface. It makes future cleanup much easier and is often worth the extra step. Finally, document the before and after, report recurring tags, and consider a consistent color or protective coating so the can blends back in. That’s the practical routine I’d use: safe, surface-friendly, and realistic for urban trash cans.