That's a great question, and it's something city maintenance crews think about a lot. The short answer is: much better than they used to. Today's public trash bins are engineered to handle aggressive cleaning protocols, which are essential for hygiene and odor control in busy urban areas.
The key lies in the materials. While old-fashioned bins might have been simple, thin steel or plastic, modern ones are typically made from high-density polyethylene (HDPE), powder-coated steel, or stainless steel. HDPE is inherently resistant to a wide range of chemicals, including bleach and strong detergents, without corroding or degrading. Powder coating on metal bins provides a thick, fused plastic layer that acts as a shield, preventing corrosive chemicals from reaching the bare metal underneath. For the highest traffic areas, stainless steel (especially grades like 304 or 316) offers excellent corrosion resistance.
Furthermore, design plays a role. Seamless, rounded interiors prevent chemical and grime buildup in corners. Many bins also feature protective coatings or laminates on any internal surfaces. Manufacturers often test their products against standard cleaning solutions to ensure longevity.
So, while daily cleaning with standard cleaners is fine, for deep disinfections, crews use chemicals compatible with the bin's material specs. The goal is a clean, safe public space without constantly replacing the infrastructure. The bins on your street are tougher than they look, designed to survive years of weather, waste, and yes, harsh cleaning chemicals.