Plastic bottle caps are recyclable, but a loose cap is too small — it falls through the sorting screens. The fix is easy: empty and rinse the bottle, then screw the cap back on so it rides through the system attached to the bottle. Metal caps from glass bottles are different — see below.
📷 Scan an item with your phoneThis is the current guidance almost everywhere: keep the cap on the empty, rinsed plastic bottle. Loose caps thrown in on their own are usually too small to capture and end up as trash or litter.
Small steel bottle caps (from glass beer/soda bottles) are recyclable as metal, but loose ones are too small for curbside — collect them inside a steel food can and crimp it shut, or trash them. Large metal jar lids can go in the blue cart loose.
Some craft and school programs collect clean plastic caps. Otherwise, on-the-bottle is the reliable recycling route.
Can you recycle aluminum cansCan you recycle glassWhat can I recycle?
Not sure about something else? Point your camera at it and RecycleLens tells you the right bin.