Tips 17/10/2025 22:32

Why You Should Never Pour Hot Water into Your Kitchen Sink

Have you ever wondered why it’s not recommended to pour hot water into your kitchen sink? Many people have the habit of pouring hot or even boiling water directly into the sink with the intention of cleaning unpleasant odors or unclogging drains. However, this seemingly simple action can actually cause serious damage and is considered a mistake.
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Why is pouring hot water into the kitchen sink a bad idea?

The pipes under your kitchen sink are usually made of plastic materials designed to withstand some heat. However, repeatedly pouring very hot or boiling water into these pipes can cause significant damage over time.

The harm caused by pouring hot water into the drainage pipes

1. Damage to the drainage system

Kitchen sink pipes are typically made from plastic materials that can endure moderate heat. But if you frequently pour boiling water or very hot water down the drain, it will reduce the lifespan of these pipes. For instance, the average drainage pipe can last anywhere from 30 to 50 years under normal conditions. However, frequent exposure to hot water can drastically shorten this lifespan, causing the pipes to wear out prematurely.

2. Deformation and cracking of pipes

Different types of drainage pipes have varying heat resistance levels. Some pipes can only tolerate temperatures up to 60 degrees Celsius. Pouring water hotter than this can cause the pipes to deform or even crack due to the heat. Once the pipes are cracked or damaged, they might leak, which can lead to water damage, unpleasant smells, and unsanitary conditions in your kitchen.

What should you do to avoid clogged drains caused by grease?

Pouring hot water isn’t an effective way to clear grease buildup in your sink. Instead, here are some safer and more efficient methods to maintain your drainage system:

1. Pre-treat grease stains on dishes and cookware

If your dishes, pots, or pans have a lot of grease, use a paper towel to wipe off excess grease before placing them in the sink. Dispose of the grease-soaked paper towels in the trash. This not only makes washing easier but also reduces the amount of grease going down the drain, preventing blockages.

2. Use specialized drain cleaners

There are many enzyme-based drain cleaning products available in the market that safely dissolve grease and organic buildup. These products use natural enzymes to break down grease and inhibit the growth of bacteria that cause bad odors. When used according to instructions, they clean thoroughly without damaging your pipes or harming the environment.

Additional tips to protect your kitchen plumbing

  • Avoid pouring grease or oil down the drain: Always dispose of cooking oils and grease in a separate container and throw them in the trash after they solidify.

  • Regular maintenance: Schedule periodic cleaning of your sink pipes using enzymatic drain cleaners or call a professional plumber for inspection.

  • Use strainers: Install strainers over your sink drain to catch food scraps and prevent them from clogging your pipes.

By following these precautions, you not only protect your kitchen plumbing but also maintain a cleaner and healthier kitchen environment. Remember, pouring hot water down the sink might seem like a quick fix, but it can lead to costly repairs and plumbing problems in the long run.

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