I did a write up on cleaning sealed cans a while back...

If your can (centerfire) is all Titanium soak it anything you like.

If it is SS and Ti... be careful of the soak and how long or else risking the SS.

If it is aluminum (Bowers and .22 cans mostly)... be VERY CAREFUL with chemicals.

If you are not actively engaging EVERY enemy you encounter... you are allowing another to fight for you... and that is cowardice... plain and simple.