How to Clean a Blender

Learning how to clean a blender properly is one of the simplest ways to extend its life and ensure your smoothies and sauces are safe and tasty. A clean blender performs better, smells fresh, and is ready for your next kitchen creation. Whether you use yours daily or occasionally, a routine that includes both quick post-use care and periodic deep cleaning will keep it in top shape. This guide covers all the steps, from a fast rinse to tackling stubborn odors, while emphasizing safety, especially around the sharp blades.

Quick Clean Right After Use

The best time to clean your blender is immediately after you’ve finished using it. Food residues, especially from sticky ingredients like nut butter, honey, or protein powder, are much easier to remove before they have a chance to dry and harden. This simple habit is the cornerstone of easy appliance maintenance.

Here’s the easiest method:

1. Rinse and Fill: Quickly rinse out any large leftover pieces. Then, fill the blender jar about halfway with warm (not hot) water. Add a small drop of mild dish soap.
2. Blend to Clean: Securely place the lid on the jar and run the blender on a low or “clean” setting for 30 to 60 seconds. The soapy water will swirl around and dislodge food from the jar walls and blade assembly.
3. Final Rinse: Pour out the soapy water and thoroughly rinse the jar, lid, and any removable parts with clean water. Invert them on a drying rack to air dry completely before reassembling or storing.

This method is incredibly effective for most daily blends. It’s important to never submerge the blender base or motor unit in water. Simply wipe the base with a damp cloth and dry it immediately.

Deep Clean of the Jar and Blades

Even with regular quick cleans, a more thorough blender cleaning is needed periodically—about once a week for frequent users, or whenever you notice a film or residue. This involves disassembling the jar to clean parts the “blend to clean” method might miss.

To perform a deep clean:

1. Disassemble Safely: Unplug the blender. Unscrew the blade assembly from the bottom of the jar. Most jars have a threaded base that the blade unit screws into. Handle the blades with extreme care.
2. Hand-Wash Components: Wash the jar, lid, and blade unit in warm, soapy water. For the crucial task of how to clean blender blades, use a soft brush or sponge to gently scrub all surfaces, including the areas where the blades connect to the base and the underside of the blades. Rinse all parts thoroughly.
3. Dry Completely: Allow every component to air dry fully before screwing the blade assembly back onto the jar. Trapped moisture can lead to mold or mildew.

Don’t Forget the Gasket and Base

Two often-overlooked parts are the rubber gasket (or seal) and the blender base. The gasket sits between the blade assembly and the jar, creating a watertight seal. Food and liquid can seep into this tiny space, leading to odors and grime.

• Cleaning the Gasket: After unscrewing the blade assembly, carefully remove the rubber gasket. Wash it separately in warm, soapy water, using your fingers or a soft brush to clean its grooves. Inspect it for any cracks, tears, or permanent warping, as a damaged gasket can cause leaks and should be replaced.
• Cleaning the Base: The motor base should never be immersed. To clean it, unplug the unit and wipe it down with a cloth dampened with a mild all-purpose cleaner or soapy water. Wipe it again with a clean, damp cloth to remove any cleaner residue, then dry it immediately. Pay attention to the control panel and any crevices where spills might have dripped.

Solving Cloudy Jars and Lingering Odors

Over time, blender jars—especially plastic ones—can develop a cloudy film or hold onto strong smells from ingredients like garlic, onion, or fish. Here are safe, effective solutions:

These methods use common kitchen ingredients and are gentler on your blender than commercial cleaners. Always rinse the jar very well after using vinegar or baking soda.

Dishwasher Guidance: Can You or Can’t You?

This is one of the most common questions in how to clean a blender. The answer depends entirely on your specific blender model and what the manufacturer states in the care manual.

• Check the Manual: The definitive answer is in your product’s use-and-care guide. It will specify which parts are dishwasher-safe. Some brands design all jar components (jar, lid, blade assembly) for the top rack, while others recommend hand-washing only.
• General Guidelines: Even if the jar and lid are dishwasher-safe, the blade assembly often is not. The high heat and harsh detergents can dull the sharp blades over time and may degrade the rubber gasket, causing it to crack or warp. The motor base is never dishwasher-safe.
• Our Recommendation: For longevity and to preserve blade sharpness, hand-washing the blade assembly is typically the safest bet. You can often place the jar and lid on the top rack if the manual allows it. When in doubt, hand-wash.

FAQ: How to Clean a Blender

Can I put my blender jar in the dishwasher?

You must check your specific model’s use-and-care manual. Many blender jars (especially glass and some BPA-free plastics) are top-rack dishwasher-safe, but the blade assembly and lid often are not. The heat and detergent can dull blades and damage rubber seals. When unsure, hand-washing is the safest choice for all parts.

How do I clean under the blades?

Cleaning under the blades is a key part of a deep clean. First, unplug the blender and unscrew the blade assembly from the jar. Using a soft-bristle brush (like a bottle brush or a dedicated blender brush), gently scrub the area where the blades attach to the base and the underside of the blades themselves. Do this carefully in a bowl of soapy water, keeping your fingers away from the sharp edges. Rinse thoroughly.

Why does my blender smell, and how do I remove odors?

Odors linger in tiny food particles trapped in the gasket, under blades, or in scratches on a plastic jar. To remove them, try a baking soda or vinegar solution. Fill the jar halfway with warm water, add 2 tablespoons of baking soda or white vinegar, blend for 30 seconds, and let it sit for 15-30 minutes before rinsing. Ensure the gasket is removed and cleaned separately.

How often should I deep clean my blender?

If you use your blender daily, a quick clean after each use and a full disassembly and deep clean once a week is a good routine. For occasional use, a deep clean after every few uses or whenever you notice a film or smell is sufficient. Always clean it immediately after blending strong-smelling or sticky ingredients.

What should I avoid when cleaning my blender?

Avoid using abrasive scouring pads, steel wool, or harsh chemical cleaners on the jar or blades, as they can cause scratches that harbor bacteria and odors. Never submerge the motor base. Don’t store the blender with the lid on if the jar is still damp, as this can promote mildew. For more on preventing bacterial growth, see our guide on preventing cross-contamination.