: an act of showing someone how something is used or done : demonstration. 1  I saw a demo on how to use the computer program. 2  The salesman gave us a demo of the vacuum cleaner, and it seemed to work very well. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples 3
If however, you are talking about some maggots in a bowl of wet food (either canned food or dry food which got wet or which you deliberately added fluid to) it is a different matter. Maggots come from flies eggs and they take some set period of time to hatch from the eggs.
1. Once trash has been removed, wash your garbage can out with boiling water. This should kill any maggots still in the can. Alternatively, if you have a sealed dumpster, you can remove maggots to a sealed plastic bag then release them into the dumpster so they can do what they do best decompose garbage. 2.