Want to be quickly up to speed about recyling in Berkeley?Discover our recycling guidelines
Both plastic and metal bottle caps can be recycled, but plastic caps are at risk of entanglement in recycling-line machinery. Metal caps can be placed in loose, but plastic bottle caps should be screwed loosely back onto their bottle.
Opt for a drink in a reusable glass or bottle instead, and carry it with you.
Metal bottle caps and jar lids are mainly made from steel (some bottle caps are aluminum) with a polyethylene (plastic) lining. The plastic lining will be burnt off when the metal is processed to make new metal products.
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