That's an excellent and practical question! The short answer is: it depends entirely on the bin's material and construction. Many modern outdoor waste and recycling bins are designed to withstand regular pressure washing, but you need to check a few things first.
For most heavy-duty plastic bins (like those from Rubbermaid or simplehuman), a standard garden pressure washer on a low to medium setting is usually safe for regular cleaning. These bins are made from durable, high-density polyethylene designed to handle weather and cleaning. The key is to use a wide-angle nozzle, keep the nozzle at least 12-18 inches away from the surface, and avoid concentrating the jet on one spot, especially near seams or wheels.
However, avoid pressure washing cheaper, thin plastic bins or metal bins that can rust. For these, a hose with a strong spray attachment and disinfectant is safer. Always check the manufacturer's label or website for specific cleaning instructions.
Regular cleaning with a pressure washer can prevent grime buildup, eliminate odors, and deter pests. Just remember to let the bin dry completely in the sun before putting a new bag in. So yes, for a quality outdoor bin, pressure washing can be a very effective part of your regular cleaning routine.