It is hard to see a kitchen without a blender. I haven’t seen one! Blenders are the most versatile and must-have appliances for kitchen countertops.

A blender can be a go-to tool for preparing tasty smoothies, hot soups, purees, dips, shakes, and many other recipes. Having a blender can make your life easier, but sometimes, you may find your blender leaking. A leaky blender can be frustrating and messy.

There can be many reasons why a blander can leak. After reading this guide, you will be able to fix most of these problems yourself at home.

Blender leaking everywhere? Fix it now!

Your blender can leak because of one or more of the following reasons.

  • Worn Gasket or Bad O-rings
  • Loose Blades
  • Wrong Assembly
  • Dishwashing
  • Cracked Container
  • Faulty Blenders

Gasket Problem

Gasket/O-rings are flat rubber rings fixed at the inside of the blade assembly around the blade part. When you screw the blade assembly on the blender jar these gaskets seal the area to avoid any leakage through the bottom.

You will find these rings on every blender where the blade assembly is separable from the jar and the blender assembly. These rubber rings can wear down with time.

Worn gaskets can cause leaking liquid ingredients from the jar. If you see leakage around the part where the jar fixes with the blade assembly, the gasket is the culprit.


Gaskets are easy to replace at home, get a new gasket (they are quite cheap). Unscrew the blade assembly from the jar. Remove the old gasket with a screwdriver or any tool available.

Put the new gasket in its place. This will solve the issue related to the gasket. Those blenders in which blade assembly is part of the jar do not have such an issue.

Loose Blade Assembly

Blades are the moving part of a blender. With regular use, these parts can wear out. If your blender is leaking black liquid from under the blade. It is most probably the damaged plastic washer inside the blade assembly.

The black liquid is the mix of lubricants under the blades and ingredients leaked from the jar.


To fix blade assembly to stop leaking. You need to dismantle the blade assembly and replace it with a new one. Here is a video on how to do it by yourself at home.

After watching this video you will get the idea of replacing the gasket and how to unscrew the blades and you can apply this to any blender model you have.

Fix leaking blender

Wrong Assembly

Many times there is no problem with the blender itself. The jar should be aligned with the blade assembly for both the threads on the jar and the blade part to fix properly. If the jar is loosely tightened on the blade assembly, the blender will leak.

In other cases, some blenders come with many different attachments like single-serve jars, milling jars, etc. The gaskets and bases of each jar should go with the same jar. Replacing different jars and gaskets can also cause leakage. Watch out for matching parts.

Gasket and Base


Dishwashers can damage blenders. Many say blenders with glass jars are dishwasher safe, but the blade assemblies are always plastic-made.

Dishwashing causes the leaking of lubricants in the blade’s moving parts, causing more wear and tear and damaging washers and bearing in blade assemblies. Try washing blenders without a dishwasher.

Cracked Container

Plastic containers are prone to cracks. Blending dry ingredients such as nuts and seeds and hard food items such as frozen fruit or ice cubes can put stress on plastic jars.

Also, blending hot liquids also damages plastic containers. Due to these factors, a jar can crack causing the liquid to leak from it.


If your blender is leaking from the jar. Replace the jar with a new one.

Manufacturing fault

This is not something common, but sometimes, the reason for your leaking blender can be none. You may have got a faulty item from the manufacturer. Or, the blender has been already damaged during the dispatch.


Always check your blender for cracks and damages when received, before using. If there is any sort of fault, return it asap.

Fixing a leaky blender: Conclusion

Always follow the directions given in the user’s guide for a kitchen appliance or any other gadget. If the problems still persist after trying fixes at home, consult with product support or any expert repairer.

Try to avoid rough use of appliances for damages. Happy blending!

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