If it's a pod that hasn't fully dissolved, and you've used a quick-wash or shorter cycle than normal, it may be that that ...

A woman shared a cleaning hack for garbage disposals that involves dishwasher detergent pods ... spin in,” she explains as she squeezes a Cascade dishwasher pod between her fingers.

Here's a closer look at seven brand-name dishwashing detergents you can get at Costco. Read more: How To Keep Your Kitchen Sponges Clean Tired of pre-rinsing and scrubbing after a wash?