That's an excellent question! Dealing with cracked trash cans after a freeze is incredibly frustrating. For a truly sturdy outdoor trash can that can handle freezing temperatures, you'll want to focus on materials specifically engineered for cold weather.
The top recommendation is a high-density polyethylene (HDPE) plastic bin. Not all plastics are created equal. HDPE is known for its incredible impact resistance and flexibility, even in sub-zero conditions. Unlike cheaper, brittle plastics, it's designed to contract and expand without cracking. Look for descriptions like "all-weather," "freeze-resistant," or "arctic-grade."
Another fantastic, though more expensive, option is a metal trash can, typically made from galvanized steel. Metal is naturally resilient against cold, but ensure it has a weather-resistant powder coating to prevent rust. For the absolute best durability, some premium models feature a rubberized thermoplastic compound that remains flexible down to -40°F/-40°C.
My key advice is to always check the product's specified temperature rating. Avoid thin, low-quality plastics at all costs, as they become brittle and will shatter. A sturdy, thick-walled HDPE bin is your most reliable and cost-effective bet for a trash can that will survive many winters to come.