That's a great observation, and you're definitely not alone in seeing this. It's a common issue in many cities with harsh winters. So, let's break down your question: are metal trash bins better than plastic ones in the cold?
The short answer is: often, yes, especially for demanding public or commercial use. Here’s why.
Plastic bins, typically made from polyethylene, become brittle in freezing temperatures. The material loses its flexibility, making it prone to cracking from impacts—like being knocked over, hit by a plow, or even just from the pressure of frozen waste inside. Constant expansion and contraction from temperature swings can also stress the material over time, leading to failures at weak points.
Metal bins, usually constructed from galvanized steel or aluminum, don't suffer from this kind of cold brittleness. The metal maintains its structural integrity in freezing conditions. They are far more resistant to impact damage from handling equipment and general urban wear and tear. A well-made metal bin can last for decades, even in tough climates.
However, it's not a simple win for metal. There are trade-offs:
* Cost: Metal bins have a significantly higher upfront cost.
* Weight & Handling: They are much heavier, which can be a consideration for manual collection.
* Corrosion: While galvanized steel resists rust, scratches or damage to the coating can lead to corrosion over time, especially with road salt exposure. Plastic is completely rust-proof.
* Noise: Metal bins are noticeably louder when being emptied.
For lightweight residential use in a driveway, a high-quality, thick plastic bin designed for cold climates might suffice. But for public spaces, sidewalks, or commercial areas where durability is paramount and bins face mechanical loading and harsh treatment, metal is generally the more reliable and cost-effective choice in the long run.
The best choice depends on your specific needs, budget, and climate severity. For extreme cold and high-traffic urban environments, the superior durability of metal usually makes it the better investment.