I use canned food from tins from time to time (cat food, chickpeas etc.). I need to clean them before throwing away as I don't have that many recyclable items to throw them away daily and I don't want the smell.
I started wondering if I can clean them up in dishwasher? Usually there is some free space either on top or bottom and (as far as I know) the practically same amount of water is used anyway so I would save both time and water. However - is it safe to do it?