It might seem harmless, but pouring leftover cooking oil down the drain can create problems. Here's how experts recommend disposing of it. [▻](https://video.t

It might seem harmless, but pouring leftover cooking oil down the drain can create problems. Here's how experts recommend disposing of it. [▻](https://video.twimg.com/amplify_video/2084732453478907904/vid/avc1/720x1280/NnuReZcHaoovvSql.mp4)