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Blendtec's 3 blender jars on white

How to Maintain your Blender Jar


A little over a year ago, we shared with you tips on how to clean your blender jars. Due to the many comments on that post, we’ve decided to give you some more tips on the best ways to maintain your Blendtec blender jars.

Clean your jar after every use.


How to Maintain your Blender Jar


In the blender:

  1. Use your Spectacula (with the Twister jar) or your Spoonula (with the FourSide and WildSide* jars) to scrape out all the delicious food you’ve just made.
  2. Fill the jar with 1 to 1½ cups water and 1 to 2 drops of soap. Secure the lid.
  3. Press “Pulse” a few times.
  4. Rinse, drain, and dry.

By hand:

  1. Use your Spectacula (with the Twister jar) or your Spoonula (with the FourSide and WildSide jars) to scrape out all the delicious food you’ve just made.
  2. Wash in the sink with soapy water.
  3. Use a nonabrasive dish cloth. (Using abrasive products, such as Scotch pads and nylon brushes, can scratch the jar.)
  4. Rinse, drain, and dry.

In the dishwasher:

  1. Use your Spectacula (with the Twister jar) or your Spoonula (with the FourSide and WildSide jars) to scrape out all the delicious food you’ve just made.
  2. Fill the jar with 1 to 1½ cups water and 1 to 2 drops of soap. Secure the lid.
  3. Press “Pulse” a few times.
  4. Place the jar on the top rack of your dishwasher. Do not run on the heat setting.

Note: Lemon-based detergents can etch the jars, making them look cloudy.

How other customers wash their jars:

  1. Fill the jar with 1 to 1½ cups water and 1 to 2 drops of soap. Secure the lid.
  2. Select “Batters.” (This cycle is great for cleaning your jar after making thicker blends, like bread doughs and batters.)
  3. Rinse, drain, and dry.


  1. Rinse your jar under warm running water.
  2. Fill the jar with 1 to 1½ cups water and 1 to 2 drops of soap. Secure the lid.
  3. Press “Pulse” a few times.
  4. Rinse, drain, and dry.


Bonus Tips:

  • Clean your jar immediately after use, don’t let food sit in it.
  • Before each use, turn the blade with your hand from the bottom of the jar by spinning the drive shaft.
  • If the jar hasn’t been used over an extended period of time, you may want to put warm water in it and let it sit for 15 minutes, dump it out and then turn the blade with your hand to ensure it’s not stuck.


*The WildSide jar is no longer available for purchase. Please check out our new and improved WildSide+ jar.

(24) Comments on “How to Maintain your Blender Jar

  • Susan Tucker

    I’m wanting to make homemade paper. You put shredded paper and hot water in the blender and blend it. Will this make my blade dull? I looked and don’t find replacement blades. Are they expensive?

    • Kelli Farley Post author

      Hi Susan,
      Making paper will not dull the blade. You cannot purchase a new blade as it is sonically welded on. I would however, recommend that you use a separate blender for non-food items.

  • My WildSide jar has been letting out black gunk out the bottom for a while and losing its lubrication. It is just a couple of years old, but I use it a lot and was purchased new from ebay or something. I can tell it’s putting too much stress on the motor (from the smell and sound, overheating if I use it a lot). Sometimes it leaks liquid as well. You’ll probably say it needs to be replaced, but it seems a little expensive to replace every 2 years. Can I possibly lubricate it since it doesn’t seem to be self lubricating?

  • Javi

    I am deliberating purchasing a refurbished classic blender. I am torn between Blendtec and Vitamix. I have read many consumer reports on both units and one thing that worries me about Blendtec is the leaking jars. Can you make my decision any easier by informing me of improvements as of late to the leaking jars situation. Also, does the 7 year warranty cover jars as well, regardless of how many times it might need replacing within those 7 years?

  • Melanie

    I have the Wildside Rebel for my vitamix base. I was blending coconuts (fresh) to make coconut milk and the blender jar and base started to heat up and smoke. What is the longest recommended time to keep the blender on? I had the motor switch on the high setting. I can’t find anything on the time limit and my base is not automated but manual controls. I know with the vitamix base, I can blend something until it’s really hot. That’s what I was trying to do with the blendtec jar. (I replaced the drive socket with the one that came with the jar). The coconut milk did not get hot but the underside of the jar did and started smoking.

  • Marina

    I tried to make almond milk today and it all leaked and then burst from under the cover. I tried again, pressing down on the cover, but it still leaked along its sides. I thought the cover was pretty much leak-proof. Is this normal?

    • Kelli Farley Post author

      Hi Marina,
      Do you remember how full the jar was before you started blending? Also, our lids sit tight on the jar, and sometimes it may seem like the lid is on all the way, when it actually may not be. Be sure that the lid is pushed on all the way before blending.

  • Michael Preece

    All of the cleaning tips for the jar are good, but I am left with a problem. I use the blender a few times daily, in other words very often. I’ve noticed that the jar slowly collects on the inside a sort of water scale that I can scrape off with my finger nail. Any tips in removing this to make the jar shiny again?

    • Kelli Farley Post author

      Plastic discoloration is a possibility when blending certain items such as certain protein powders, certain spices, dry goods, etc. When regular cleaning does not remove these stains, there are a few other things that can help diminish the appearance which are listed below. Some of these tips will work better for certain types of stains, while other tips might work better for another type of stain, so if one doesn’t seem to do the trick, try out another.

      Tips for removing stains from your jar:

      Juice of 1 lemon, 2-3 tbsp of baking soda, and some water. Then, run to Speed 10 and scrub with non-scratch sponge.
      Vinegar mixed with baking soda (and some water) will also work. Then, run to Speed 10 and scrub with non-scratch sponge.
      1-2 tbsp powdered dishwasher detergent dissolved in 1-2 cups hot water, left to soak for 1 hour. Then, scrub with non-scratch sponge.
      To get ‘smells’ out, just grinding up a lemon works like it does for your garbage disposal.
      Put in six squirts of Bleach in the jar. Let it sit in the jar for about 5 minutes and rinse well before blending.
      Lemi Shine® is a dishwasher detergent additive. Combined with your auto dish detergent, Lemi Shine® Original removes tough hard water spots, stains, and film during the main wash cycle.
      Protein powder – Lemi Shine® will also help with the protein powder. Let soak in the jar for 20 min with some powdered dish washer detergent.

      • Karen

        why don’t they just make glass jars that do not get stained and etched? I’ve had my cuisinart blendr jar for years looking nice. So want a blend-tec but not having my jar get ugly .

        • Kelli Farley Post author

          Hi Karen,
          Thank you for expressing your concerns. We do not make glass jars for two reasons:

          1. Safety is our top priority. Blendtec blenders are among the most powerful on the planet, and their jars have to handle high-speed impacts from very hard ingredients like frozen fruit. Glass jars have the potential to shatter not only when dropped, but also during high-speed blending. Blendtec’s Tritan copolyester jars are engineered to withstand that kind of stress.
          2. Lighter is better. Blendtec jars are very light and are molded for easy gripping and storage. Glass jars, on the other hand, are heavier and more difficult to grip, pour, and store.

  • DN

    I just bought a Blendtec TotalBlender and I find that sometimes the jar sticks to the base after use. Can I lubricate the metal shaft that fits into the base with a bit of coconut oil?

    • Kelli Farley Post author

      It sounds like the plastic of the jar is fusing/melting slightly to the motor base. Are you holding the jar down during blending? If so, this disallows movement while it works on tough chunks and can cause it to start sticking. The seal is probably bad or going bad as well. There should never be a need to apply any additional lubrication anywhere on a Blendtec. Please call our customer service team at 800-253-6383, for additional assistance.

  • Rhonda M

    My classic model blendtec jar doesn’t fit on the top shelf can I put it on the bottom shelf if I turn off heated dry?

    Thank you

    • Kelli Farley Post author

      You can, but we highly recommend you don’t put it in the dishwasher. It’s super quick and easy to wash. If your blender has a Clean cycle, just add a cup of water and a drop or two of dish soap to your jar, replace the lid, run the cycle, and rinse. If your blender does not have a Clean cycle, add the same amount of water and soap, replace the lid, Pulse a few times, and rinse. My Blendtec doesn’t have the Clean cycle, but I run it on the Dips/Batters cycle.

  • Sean

    I use my 4-sided blendtec everyday. I drink a shake made from fresh hard greens lke brocolli stems and brussel sprout heads with fruit mixed in. I have been treating the harder veggies like i do ice and add them last. I am a ‘new’ owner with only 95 blends. I clean my blender with hot water, soap, and some pulses. Yesterday i caught an off-putting smell from the base unit when i removed the jar. I checked today to make a shake and the blade does not spin free. It catches in places but isnt spinning freely. I put warm water, a bit of soap, and white vinegar in it to sit. I blended the soak for about 20 seconds. Now it squeaks when i turn the blade, like rubber on rubber. Any thoughts?

    • Jessica Andreasen

      Hi Sean, it sounds like you may need a jar replacement. Please call our awesome customer service team at 1-800-748-5400 and they’ll help you out!

  • Dawne

    I don’t have my receipt but I bought my blendtec from Costco probably 2 or 3 yrs ago. I’m having a leaking problem from the jar, can I get a (free) warranty replacement w/out the receipt? Thnx. Btw. I LOVE it and use it almost everyday sometimes twice!

    • Kelli Farley Post author

      Hi Dawne,
      You don’t need your receipt to claim the warranty. When you call in (800-253-6383), please be sure you are near your blender and jar, and one of our customer service representatives will be able to help you.

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