You may have heard people say to never pour oil down the kitchen sink. But why not? It’s quick, it’s easy, and how is oil any different than all the other liquids you pour down the drain? Well, it may pour like a liquid when it’s warm, but many oils solidify as they cool. And as soon as it leaves that hot pan and hits the pipes, the oil is going to start cooling and sticking to your drain pipes. So now you’ve created a greasy trap for every food particle or debris that follows after.
Even oils that are liquid at room temperature can create problems. Oil and water don’t mix and so while the water goes down, the oil sticks to the sides of your pipes and coats them. Then anything heavier than water, like food particles, will stick to the oil coating the pipes in your plumbing system.
If you’ve ever noticed strange, unpleasant smells coming from your kitchen drain or disposal, it’s probably due to that sticky, stinky mess created by pouring oil down the sink. As time goes on, that annoyance could become a full-on clog in your plumbing system. So while it may be more convenient to dump oil down the drain, treating it like solid waste that needs to go out with the trash could save you on plumbing costs, not to mention help eliminate those unpleasant smells coming from the drain. And if you’re worried about the mess, you can collect all of your used oil and grease in an old coffee can or even a plastic food storage bag and when that’s full, just toss it out with the garbage.