How to Remove Bad Smells From a Blender

How to Remove Bad Smells From a Blender | Quick 2026 Guide

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Last Updated on July 1, 2026 by Kathay Lee

Why Does Your Blender Smell Bad?

Your blender smells because food gets trapped in tight spots. Smoothie residue, garlic, onion, fish, and spices all leave behind strong odors. The rubber gasket and blade assembly are the biggest culprits.

Over time, bacteria and mold grow in those hidden areas. That creates a sour, musty, or rotten smell even after you rinse the jar.

The good news? You can fix this at home in under 10 minutes.

What You Need Before You Start

You probably have everything already:

Common household items that work:

  • Baking soda
  • White vinegar
  • Fresh lemon or lemon juice
  • Coarse salt
  • Dish soap
  • Warm water
  • A soft brush or old toothbrush

Method 1: Baking Soda and Warm Water

Baking soda is a natural odor absorber. It breaks down acidic and alkaline smells without harsh chemicals.

Steps:

  1. Add 1 cup of warm water to the blender jar.
  2. Add 1 tablespoon of baking soda.
  3. Put the lid on and blend for 30 seconds.
  4. Let it sit for 5 minutes.
  5. Rinse well with clean water.
  6. Air dry completely.

This method works great for garlic smells, fish odors, and sour smoothie residue.

Method 2: White Vinegar Rinse

White vinegar is a mild acid. It kills odor-causing bacteria and dissolves mineral buildup inside the blender jar.

Steps:

  1. Mix equal parts white vinegar and warm water.
  2. Fill the blender halfway with the mix.
  3. Blend for 20 to 30 seconds.
  4. Pour it out and rinse with warm water.
  5. Repeat if the smell is still strong.

Do not use apple cider vinegar. It can leave its own smell behind.

Method 3: Lemon and Salt Scrub

Lemon juice has citric acid that cuts through grease and odor. Salt acts as a gentle abrasive to scrub away stuck-on residue.

Steps:

  1. Cut a lemon in half and squeeze the juice into the blender.
  2. Add 1 teaspoon of coarse salt.
  3. Add half a cup of warm water.
  4. Blend for 30 seconds.
  5. Rinse thoroughly.

This method leaves a clean, fresh scent without any artificial fragrance.

Method 4: Dish Soap Deep Clean

Sometimes a quick rinse is not enough. A full deep clean with dish soap removes grease and odor layers that build up over weeks.

Steps:

  1. Fill the blender jar halfway with warm water.
  2. Add 2 drops of dish soap.
  3. Blend for 30 seconds on high speed.
  4. Pour out the soapy water.
  5. Rinse well with clean water until no soap remains.
  6. Leave the lid off and let it air dry.

Do this at least once a week if you use your blender daily.

How to Clean the Blender Gasket and Blades

The gasket is the rubber ring at the bottom of the jar. It traps food and moisture. Most bad smells come from here.

To clean the gasket:

  1. Remove the blade assembly from the jar.
  2. Pull out the rubber gasket carefully.
  3. Soak it in white vinegar for 10 minutes.
  4. Scrub with an old toothbrush.
  5. Rinse and dry fully before reassembling.

To clean the blades safely:

Never put your fingers near the blades. Use a long brush or sponge on a stick. Clean between the blade edges carefully. Dry the assembly completely before storing.

How to Prevent Bad Smells in the Future

Prevention is easier than fixing a smelly blender.

Simple habits that help:

  • Rinse your blender within 5 minutes of use. Do not let food sit and dry.
  • Always air dry with the lid off. A closed lid traps moisture and causes mold.
  • Do a 30-second self-clean with water and dish soap after every use.
  • Deep clean weekly if you blend daily.
  • Store the blender with the lid off or slightly open.
  • Avoid blending fish or strong-smelling foods without a deep clean right after.

These small steps keep your blender fresh for months.

When to Replace Your Blender

Sometimes the smell does not go away. If you have tried all the methods and the odor remains, the plastic jar or gasket may have absorbed the smell permanently.

Signs it is time to replace parts or the whole blender:

  • The rubber gasket is cracked or discolored.
  • The plastic jar has deep scratches where bacteria hide.
  • The smell comes back within hours of cleaning.
  • Visible mold that you cannot fully remove.

Many brands sell replacement jars and gaskets separately. That is cheaper than buying a full new blender.

Final Thoughts

A smelly blender is a common problem. But it is also an easy fix. Use baking soda for everyday odors. Try white vinegar for bacteria and mineral buildup. Use lemon and salt for a natural, fresh clean. And always deep clean the gasket and blades regularly.

With these simple steps, your blender stays clean, safe, and smell-free all year.

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