The Best Ways to Clean Your Kitchen Sink Drain

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Sanitize and deodorize your drain with these simple tips and products
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Have you noticed your kitchen sink drains more slowly or has an unpleasant odor? When food debris, grime, and dirt cause clogs or bad smells, it’s time to give your drain a thorough cleaning. Even though your kitchen drain may seem a little tricky to clean, it’s so easy with a few common household products. Keep reading and we’ll cover the most effective ways to clean your kitchen drain and the best products for removing stubborn buildup.

Things You Should Know

  • Pour boiling water down your drain to flush out any food residue and buildup stuck inside.
  • Alternatively, put vinegar and baking soda down the drain. Let it sit for 10 minutes, then rinse it out with boiling water.
  • Remove clogs from your sink with a plunger or clean residue out with a drain snake. Pour enzyme or chemical cleaners into your drain if you can’t remove the blockage.
Method 1
Method 1 of 3:

Flushing the Drain with Hot Water

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  1. Step 1 Boil a pot or kettle of water.
    Fill a large kettle or pot with water and put it over high heat on your stove. Wait until the water starts bubbling and reaches 212 °F (100 °C) before turning off the heat.[1]
    • Boiling water works best if your kitchen sink drains slowly but isn’t fully clogged.
    EXPERT TIP
    Chris Willatt

    Chris Willatt

    House Cleaning Professional
    Chris Willatt is a House Cleaning Professional based in Denver, Colorado. Chris is the owner of Alpine Maids, a cleaning agency that he founded in 2015. Chris is on a mission to elevate what it means to be a cleaning professional and has built up Alpine Maids with that goal in mind. Chris has been featured in USA Today, Forbes, and Readers Digest. Alpine Maids received Angie's List Super Service Award for three years in a row from 2016-2018. They were also awarded Colorado's "Top Rated Local House Cleaning" Award in 2018 and were featured on the Inc. 5000 Company List.
    Chris Willatt
    Chris Willatt
    House Cleaning Professional

    Clean the drain every time you wash dishes to maintain it once it's clean. Chris Willatt, the owner of Alpine Maids, says: "The rubber gasket that's in your sink drain can get pretty dirty, which can lead to unpleasant smells. When you're washing dishes, take that gasket out and put it in the dishwasher, then scrub around it with a soapy sponge."

  2. Step 2 Pour the boiling water down your drain.
    Slowly and carefully pour the water directly down the drain, making sure not to spill or splash any liquid. If the water moves quickly and easily through the drain, then you’ve cleared the clog.[2]
    • The boiling water will melt away any residue stuck inside your drain so it washes through your pipes.
    • Pouring boiling water down your kitchen drain also helps get rid of drain flies that lay eggs in the buildup inside your pipes.[3]
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  3. Step 3 Target drains that have garbage disposals with hot, soapy, water.
    Put a stopper over your kitchen drain, and fill your sink with a few inches of hot water. Add a large squirt of dish soap to the water. Then, take the stopper out of your sink and turn on your garbage disposal. The soapy water will fill your garbage disposal and loosen smelly food residue that’s caught around the blades.[4]
    • The added dish soap helps cut through any grease or fat that’s stuck in your drain as well.
    • Alternatively, add a few lemon wedges, coarse salt, and ice cubes to your disposal, then run the disposal until the ice is gone. The salt scrubs the blades, the ice knocks away debris, and the lemon deodorizes the drain.
    • If any odor remains, let some baking soda sit in your disposal for 5-10 minutes, then rinse with hot water.
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Method 2
Method 2 of 3:

Using Baking Soda and Vinegar

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  1. Watermark wikiHow to Clean a Kitchen Drain
    Scoop the baking soda directly into your kitchen sink drain. Use the end of a spoon or butter knife to push all the baking soda inside of the drain so it’s not just sitting on the surface.[5]
    • If you’re cleaning a really smelly drain, let the baking soda sit for about 15 minutes so it has a chance to absorb more odors.
    • Baking soda acts as a natural deodorizer and abrasive scrubber to get rid of food and unpleasant odors from your drain.
    • Baking soda is safe to use in your kitchen drain regardless of if you have a garbage disposal or not.[6]
  2. Step 2 Boil 3 cups (710 ml) of distilled white vinegar.
    Add the distilled white vinegar to a pot or kettle, and set it over high heat. Let the vinegar sit for a few minutes, and take it off the heat once it comes to a rolling boil.[7]
    • White vinegar is acidic and has antimicrobial properties, so it kills bacteria and helps freshen up your sink drain.[8]
  3. Watermark wikiHow to Clean a Kitchen Drain
    Slowly pour the hot vinegar down your drain a little at a time. When the vinegar combines with the baking soda, it causes a bubbling chemical reaction that will loosen buildup and remove any bad smells from your drain.[9]
  4. Watermark wikiHow to Clean a Kitchen Drain
    This will give the baking soda and the vinegar time to deodorize and clean the drain. As the baking soda and vinegar react, the fizzing will break down the residue stuck inside the drain pipes so it easily washes away.[10]
  5. Step 5 Flush the drain with boiling water.
    Set a pot or kettle of water over high heat on your stove, and let it come to a rolling boil. After the baking soda and vinegar have been inside your drain for 5–10 minutes, slowly pour the boiling water down your drain. This will remove and rinse out any scum or debris that’s leftover inside of your kitchen sink drain.[11]
    • To prevent your drain from getting too smelly or dirty, deodorize it with baking soda and hot vinegar once a week.
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Method 3
Method 3 of 3:

Easy Ways to Remove Clogs

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  1. Watermark wikiHow to Clean a Kitchen Drain
    Shine a flashlight down your drain and look for any visible obstructions in the pipes. If you see a clog near the top of your drain or in your garbage disposal, reach in with your needlenose pliers and slowly pull it out.[12]
    • Unplug your garbage disposal so you don’t risk it turning on while you’re cleaning. If your disposal is hard-wired and doesn’t have a plug, then turn off the power at your main breaker box.
  2. Watermark wikiHow to Clean a Kitchen Drain
    Try using a sink plunger to force the clog out of your drain. Set your plunger over the kitchen drain opening so it forms a watertight seal. Slowly press the plunger down, and quickly jerk the handle back up to loosen the clog. Keep moving the plunger up and down about 20–30 times before taking it out of your sink. Turn on your faucet and let water run through your drain. If the water flows without backing up, then the plunger removed the clog.[13]
    • Plug the overflow opening on your sink with a rag or washcloth. If you have a double sink, then plug the second drain while you’re plunging.
    • Plungers work great if your drain is fully clogged and there’s standing water in your sink.