That's an excellent and very practical question! Dealing with a trash can that shatters in the cold is a messy and frustrating problem. Having been through a few winters myself with outdoor bins, I can share what I've learned about picking one that lasts.
The single most important factor is the material. You want to avoid standard, brittle plastics. Instead, look for bins made from specific, engineered polymers. High-Density Polyethylene (HDPE) is a top choice because it remains flexible and impact-resistant in low temperatures. Polypropylene (PP) is another good option, known for its toughness. Some manufacturers use co-polymeric materials or rubber-modified plastics specifically designed for thermal shock resistance. A quick check of the product specifications or a label that says "all-weather," "arctic-grade," or "freeze-resistant" is a great start.
Beyond the base material, the construction matters immensely. Thick walls (look for descriptions like "double-walled" or "heavy-duty") provide more structural integrity and resist contraction and stress from freezing contents. Seamless or rotational-molded construction is superior to thin, welded seams which can become weak points. Also, consider the lid and hinge mechanism. A simple, robust lid is better than a complex one with thin plastic hinges that can snap.
Here are a few quick tips from experience:
* Look for Certifications: Some bins meet standards like ASTM D5276 for drop testing at low temperatures.
* Consider Shape: Round or cylindrical bins handle stress more evenly than sharp-cornered rectangular ones.
* Size Wisely: A completely overstuffed bin is more likely to crack if the contents freeze and expand.
* Dark Colors: While not a guarantee, darker colors can absorb a bit more winter sun, potentially helping slightly.
For urban settings, a 30-50 gallon HDPE bin with thick, rotational-molded walls and a simple, attached lid is often a reliable workhorse. It might cost a bit more upfront, but it saves you from the dreaded cleanup of a shattered bin in January. Hope this helps you find one that makes it through many winters