There is nothing more disgusting than the smell of dog poop in a trash can, especially in the hot summer. If you are having this problem, then you may consider getting a diaper genie or pail for dog poop. However, if you choose to continue using the regular trash can with a lid, there are a few ways that you can stop dog poop from smelling in your bin. One is by using a carbon filter, which contains activated carbon that absorbs the bad smell of the waste. You can also use baking soda or vinegar to absorb the smell. Simply, sprinkle the baking soda at the bottom of the bin or spray vinegar mixed with water into the bin. Another way is to use activated charcoal bags available at the store to absorb the odor molecules and prevent the bad smell. Scented dog poop bags also help to some extent to mask the awful smell compared to the regular unscented bags.