Before tackling the smell, it’s helpful to identify the source. Common culprits include:

Food and Drink Spills: Crumbs, grease, and liquids can seep into the fabric and cushioning, creating a breeding ground for bacteria and unpleasant smells.

Pet Odors: Fur, accidents, or even your pet's natural scent can cling to the couch.

Body Odor: Prolonged use can lead to sweat and body oils accumulating on the couch.

Mold and Mildew: If the couch has been exposed to moisture, mold and mildew might be the cause of the smell.

Smoke: Cigarette smoke or cooking fumes can settle into the fabric over time.

1. Vacuum Thoroughly

Start by vacuuming the couch to remove surface dirt, hair, and crumbs. Use the upholstery attachment to get into crevices and corners. This step not only prepares the couch for deeper cleaning but can also help reduce odor.

2. Sprinkle Baking Soda

Baking soda is a natural deodorizer that can neutralize odors without harsh chemicals.

How to Use:

Generously sprinkle baking soda over the couch, focusing on areas where the smell is strongest.

Let it sit for 15–30 minutes (or longer for persistent odors).

Vacuum the couch thoroughly to remove the baking soda.

3. Spot Clean Stains

Odors often linger around stains. Address these spots with a gentle cleaner.

DIY Cleaning Solution: Mix warm water with a few drops of mild dish soap or white vinegar.

How to Clean:

Dampen a soft cloth or sponge in the solution and gently blot (don’t rub) the stained area.

Rinse with a clean, damp cloth to remove soap residue.

Allow the area to air dry completely.

4. Use Upholstery Cleaner

For deeper cleaning, use a store-bought upholstery cleaner that’s safe for your couch material. Always follow the manufacturer’s instructions and test on a small, inconspicuous area first.

5. Steam Clean (Optional)

A steam cleaner is excellent for breaking down bacteria and lifting odors embedded deep in the fabric. If you don’t own one, you can rent a steam cleaner or hire a professional upholstery cleaning service.

Tips for Steam Cleaning:

Ensure the couch material is safe for steam cleaning.

Use distilled water to avoid mineral buildup.

Let the couch dry completely before using it again.

6. Air It Out

Fresh air can work wonders for odors. Move your couch near an open window or, if possible, place it outside on a dry day. Allowing the couch to air out can help dissipate lingering smells.

7. Use Fabric Sprays or Essential Oils

Fabric sprays like Febreze can help mask odors temporarily, while essential oils can provide a fresh scent.

How to Use:

Lightly mist the couch with a fabric spray or a mixture of water and a few drops of essential oil (like lavender or eucalyptus).

Avoid over-saturating the couch to prevent dampness.

1. Use Couch Covers

A removable, washable couch cover can protect your sofa from spills, pet hair, and everyday grime.

2. Establish No-Food Zones

Limiting food and drink on the couch can reduce the risk of spills and crumbs.

3. Regular Cleaning

Vacuum the couch weekly and clean up spills immediately to prevent them from soaking in.

4. Address Pet Odors

If you have pets, groom them regularly and consider using a pet-safe deodorizer to keep their scent from clinging to the couch.

5. Invest in Dehumidifiers

High humidity can lead to mold and mildew growth. A dehumidifier can help maintain a dry environment.

If your efforts don’t eliminate the odor, or if the smell comes from something like mold, consider hiring a professional upholstery cleaning service. They have the tools and expertise to handle stubborn odors effectively.