Metal thermoses are not recyclable through standard curbside recycling. Rather, drop them off at your local metal recycling facility to be recycled. Plastic travel mugs may typically be recycled at home, although the procedure varies depending on the kind of plastic (which is frequently stated on the bottom of the cup) and local recycling rules. You can recycle old thermoses in a variety of ways, such as vases, change organizers, dry food containers, and much more.