Cleaning out food cans before recycling them

As mentioned in my previous posts, not all countries have recycling services, public or private though things may be changing worldwide.
When using up a drinking can (ie. Pepsi can), there is little liquid left inside since the drink itself is usually not sticky.

However, using a can containing solid food substance has stains covering almost the entire can form the inside. Food cans weather containing beans or pet food or any other are solid substances and extremely dense, sticking tightly to the cans on the inside.

This leaves it unclean when opened and emptied. Many people (including myself) choose to throw it in the garbage because of this. The way to throw the can in recycling waste is to first clean it out. This process is quick and easy.

Once emptied, simply place a few drops of liquid soap and fill the can with water for one day or one night. After the day or night goes by, empty the water into the sink and the can will be mostly free of stayed, ready to be disposed of into the recycling bin.