That's an excellent and practical question! Many homeowners worry about their outdoor bins when temperatures drop. The good news is that most modern plastic outdoor trash bins are specifically engineered to handle cold weather quite well, but their performance depends heavily on the type of plastic used.
The key is High-Density Polyethylene (HDPE). This is the most common material for quality bins, and it's known for its excellent impact resistance, even in sub-freezing conditions. Unlike some plastics that become brittle, HDPE retains a degree of flexibility, allowing it to contract and expand with temperature changes without developing cracks. You might notice the plastic feels harder in the cold, but it generally won't shatter from normal use or a minor impact.
However, not all plastics are equal. Lower-quality bins made from thin or recycled plastics without proper UV and cold stabilizers are more prone to becoming brittle and cracking. The bin's design also matters. Thick, ribbed walls provide structural integrity, and a seamless rotational-molded construction is superior to thin, welded seams which can be stress points.
A few tips for winter care: Avoid hitting the bin with hard objects when it's frozen, as any material is more vulnerable under extreme force. Try not to overfill it, as this puts extra stress on the plastic when it's less flexible. Also, if possible, store it in a slightly sheltered location to minimize constant wind chill and direct ice buildup.
In summary, a well-made HDPE trash bin from a reputable brand should have no issue withstanding typical winter cold without cracking. The material science behind them is designed for exactly this kind of outdoor, year-round duty.