What happens when
Cooking medium is made to flow down a drain.

Explanation

### Step-by-Step Solution:

1. **Understanding the Cooking Medium**: When we refer to a cooking medium, we are talking about substances like oil, grease, and food scraps that are often left over after cooking.

2. **Flowing Down the Drain**: When these substances are poured down the drain, they mix with water and other waste materials already present in the drainage system.

3. **Formation of Organic Waste**: The cooking medium primarily consists of organic waste, which includes fats, oils, and food remnants. These materials are not easily broken down in the drainage system.

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