I don't know what to do with the sharp tops of cans after opening them. So I take one clean empty metal can and put all of the sharp lids in the can and let them build up to the top. It makes for a very neat and clean way to store these sharp items and it takes about a month to fill one can. Now I have this heavy can of many sharp lids. What can I do with it?
It sounds like you are talking about regular metal cans that usually hold soup or canned vegetables. If so, these cans and their lids are infinitely recyclable! You’ve found a great way to safely collect can lids. You can recycle that heavy can with all the lids in it, as long as they’re clean and dry and your hauler accepts metals. Just to be safe, set the can standing up so the lids don’t spill out and cut any fingers or plastic bags (if your recyclables are collected in bags).