Hole in the bottom of the refrigerator: what it is and how to clean it perfectly

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# **Hole in the Bottom of the Refrigerator: What It Is and How to Clean It Perfectly**

If you’ve ever cleaned out your refrigerator and noticed a **small hole at the back or bottom**, you may have wondered:
**”What is this for — and should I be cleaning it?”**

You’re not alone. That mysterious little hole is one of the most overlooked parts of your fridge, yet it plays a **critical role in keeping your appliance running smoothly**. And yes — if it gets clogged or dirty, it can lead to unpleasant odors, leaks, and even mold.

Let’s break down what that hole does and how to clean it properly, so your refrigerator stays fresh and functions like new.

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## 🧊 **What Is the Hole in the Bottom of the Fridge?**

That small hole at the back or base of your refrigerator compartment is the **defrost drain hole**.

### ✅ Its purpose:

* **Drains excess water** from automatic defrost cycles
* Prevents water from pooling inside the fridge
* Channels moisture to a drip tray underneath the fridge, where it evaporates

When everything works properly, you never even notice it. But when it gets clogged? You’ll definitely notice.

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## 🚨 **Signs the Drain Hole Is Clogged:**

* Water pooling at the bottom of the fridge
* Unpleasant smells or musty odors
* Visible mold or gunk around the drain
* Leaking from underneath the fridge