While it isn’t necessary to rinse out recyclable tin cans completely in order to recycle them, residual food can be tempting to wildlife. Many wild animals slice their tongues when they lick the razor-sharp lids in the recycling bin. To prevent this, be diligent about rinsing out the cans and put the tops inside. Stomp the open end so it crimps, making it impossible for the lid to fall out. If this sounds like too much effort, you can also just toss the lid into the trash and recycle the can.