Over time, the practice of disposing of coffee grounds by pouring them down the kitchen sink can cause plumbing issues, which may eventually require professional help.

When combined with water, coffee grounds can clump and cause trouble for your pipes. In fact, even a garbage disposal can't prevent them from clumping up and clogging the system.

Clumped-up coffee grounds can damage your sink’s drainage system and trap rotting food or grease, making your pipes and kitchen stink. Hence, it’s best

to toss them in the trash.