This is the number one culprit. Over time, dust, food particles, and a sticky bacterial secretion called biofilm slide down the drain. It acts like liquid glue, slowly narrowing the passage until it creates a solid plug of black, slimy gunk.

Once the water is flowing, do not just put the food back. You need to sanitize the tube.

Welcome to the most common, most frustrating, and (luckily) most fixable issue in refrigeration. Today, we are diving deep into the blocked fridge drain.

Unplug your refrigerator before attempting any repair. Water and electricity are a deadly combination. If you are uncomfortable with any of these steps, call a professional.