That's a great question! Dealing with a grimy, sticky outdoor trash can is nobody's idea of fun. From my experience, the absolute easiest cans to clean share a few key features: a smooth, non-porous interior surface and a design that gives you easy access.
For the top spot, I'd recommend a high-quality stainless steel trash can. The interior is typically seamless and super smooth, so nothing really sticks to it. When it's time to clean, you can just hose it down, maybe give it a quick scrub with a brush and some soapy water, and it rinses off completely. No stains, no lingering smells absorbed into the material. They're durable and look sharp, too.
A close second are heavy-duty plastic bins with a removable inner bucket or liner. The liner takes the brunt of the mess. You simply pull it out, clean it separately in a sink or with the hose, and the main barrel stays relatively clean. Look for plastic with a glossy, smooth finish inside rather than a rough texture.
Galvanized steel cans are also pretty easy. They have a smooth coating, but be gentle to avoid scratching it. Avoid textured plastic, concrete, or wood bins, as grime gets trapped in the pores and makes scrubbing a much bigger chore.
My best tip? No matter the material, prevention is key. Always use sturdy trash bags that fully cover the interior, and consider sprinkling a bit of baking soda at the bottom to absorb liquids and odors. A quick rinse every few weeks prevents major build-up.
So, for the easiest cleanup, aim for smooth stainless steel or a bin with a removable liner. It saves you so much time and effort in the long run