We don't use a diaper genie or a dedicated trash can for our diapers - the stinky ones just go in one of these bags, get tied in a knot, and get tossed into the kitchen garbage. Not a whiff of one yet & we've used them for every "solid" diaper for 15 months. That being said, we tie the actual bag shut instead of using the handles to tie it shut, so that could be part of it as well.