If your kitchen sink is emitting a sour smell, the first thing you should do is clean the sink drain. Food particles and grime can build up over time, leading to unpleasant odors. Use a drain brush or a mixture of hot water and dish soap to scrub the inside of the drain. You can also use a mixture of hot water and vinegar for a more thorough clean.1. Clean the Sink Drain
If a simple scrub isn't enough to get rid of the smell, try using a mixture of baking soda and vinegar. Pour half a cup of baking soda down the drain, followed by a cup of vinegar. Let it sit for a few minutes, then rinse with hot water. The chemical reaction between the two ingredients will help break down any buildup and eliminate odor-causing bacteria.2. Use Baking Soda and Vinegar
Lemon juice is a natural deodorizer and can help get rid of unpleasant smells in your kitchen sink. Squeeze the juice of one lemon down the drain and let it sit for a few minutes before rinsing with hot water. The fresh citrus scent will leave your sink smelling clean and fresh.3. Try Lemon Juice
If the smell persists, you can try using a commercial drain cleaner. Look for one that is specifically designed to eliminate odor-causing bacteria. Follow the instructions on the product carefully and make sure to rinse the sink thoroughly after use.4. Use a Commercial Drain Cleaner
A clogged drain can also lead to unpleasant smells in your kitchen sink. If you notice that the water is draining slowly or not at all, there may be a clog in the pipes. Use a plunger or a drain snake to try and clear the clog. If the problem persists, it may be best to call a professional plumber.5. Check for Clogs
If your kitchen sink has a garbage disposal, it's important to keep it clean to prevent odors. You can use a mixture of hot water and dish soap to clean the blades and inside of the disposal. You can also grind up a lemon or orange peel to help freshen up the disposal.6. Clean the Garbage Disposal
If the source of the smell is coming from the drain, using a plunger can help to dislodge any debris or buildup that may be causing the odor. Make sure to cover the overflow drain with a wet cloth before plunging to create a tight seal.7. Use a Plunger
In some cases, the source of the sour smell in your kitchen sink may be mold or mildew. If you notice any black or green spots, clean the area with a mixture of bleach and water. Make sure to wear gloves and open windows for ventilation when using bleach.8. Check for Mold or Mildew
There are many kitchen sink cleaners on the market that are specifically designed to eliminate odors. Look for ones that contain natural ingredients like essential oils and enzymes to break down bacteria and leave your sink smelling fresh.9. Use a Deodorizing Cleaner
If you have tried all of the above methods and the smell still persists, it may be time to call a professional plumber. They will be able to diagnose the issue and provide a solution to get your kitchen sink smelling clean and fresh again. Don't let a sour smell coming from your kitchen sink ruin your appetite. By following these tips and tricks, you can eliminate unpleasant odors and keep your sink smelling fresh and clean.10. Call a Professional Plumber