Short answer: not really—at least not in the way most of us would expect on a normal city street. Ordinary urban trash cans and public recycling bins usually don’t separate glass from plastic automatically. Most rely on people to choose the right bin, and even then, contamination is a big problem. A half-empty coffee cup, a greasy food container, or a broken bottle can mess up an entire recycling stream.
That said, automatic sorting technology does exist. Some smart bins and reverse vending machines can identify materials using sensors, cameras, or AI, and a few can even crush or compact bottles and cans. You’re more likely to see this in airports, shopping malls, offices, festivals, or pilot programs than on a random sidewalk. These systems can sometimes tell glass from plastic, but they’re not common as general-purpose urban trash cans.
Why aren’t they everywhere? First, outdoor public bins take a lot of abuse. They face weather, vandalism, overflowing waste, and very mixed trash. Second, glass is tricky: it breaks, can be dangerous to handle, and can jam mechanical systems. Third, smart bins cost more to buy, power, connect, and maintain. A city might need hundreds or thousands of them, so the budget adds up fast.
There’s also a difference between a trash can that sorts waste and a recycling facility that sorts waste. Many cities collect mixed recyclables and then separate glass and plastic at a materials recovery facility using conveyor belts, magnets, air jets, and optical sorters. That’s automatic separation, but it happens at a large plant—not inside the street bin itself.
So, if you’re asking whether you can toss a mixed bag into an urban trash can and trust it to separate glass from plastic automatically, the answer is usually no. Some advanced bins can do limited sorting, and reverse vending machines are good at taking specific bottles and cans, but they’re not the norm. For now, the most reliable “automatic” system is still a combination of clear public instructions, well-designed bins, and careful sorting by people.