What Can You Not Put In A Blender- 15 Worst Things To Blend

What Can You Not Put In A Blender

Blenders are a staple in many kitchens for good reason- they are incredibly versatile and can be used to create delicious and nutritious smoothies, soups, sauces, and more.

But, with that versatility comes some risk. Not all ingredients are suitable for blending.

There are some things you should never put in a blender because the results can be messy, dangerous, or just plain gross.

Here are 15 of the worst offenders. Keep these items in mind when creating your next smoothie or recipe to avoid any unpleasant surprises!

15 things you should never put in a blender


Garlic is used in all types of recipes around the world, but it can wreak havoc on your blender.

When you blend garlic, the cell walls break down and release harsh compounds that leave your blender smelling like an Italian restaurant that’s been open for twelve hours straight.

You could soak the blender whole overnight in mild detergent to remove the smell, or you could consider chopping your garlic instead of blending next time!


No one enjoys chopping up an onion for whatever reason.

They’re messy and can make your eyes water the moment you bring them near your face.

But do you really need to avoid all that pain by blending? The problem is similar to garlic- when onions are heated under any circumstances their cells break down and release harsh compounds that leave your blender smelling unpleasant.

If you have no other choice but to use a blender on an onion, consider some oil first so that it doesn’t burn and release the compounds immediately.


Spices are one of those ingredients that can enhance most recipes, but there’s no way to actually blend them into your food.

When you put things like cinnamon or nutmeg in a blender without anything else, they simply won’t blend into your dish- even if you use enough liquid to create steam inside the blender jar!

So instead of getting frustrated with your machine (and potentially damaging it), make sure you always add some form of fat with spices before blending.

Dried Beans

Dried beans are nutritious and delicious, but they can be tricky to cook- so why would you want to put them in a blender?

The issue with soaking dry beans overnight is that by morning they have soaked up so much water that they expand drastically when blended, which forces the blade to shatter out of the container.

If that doesn’t happen, then they simply won’t blend properly, leaving you with chunks or a grainy consistency instead of a smooth puree.

Anything Oil Based

Low power blenders can struggle with oily liquids in a blender. Also, they will stick to the walls of the container and won’t go away.

If you want to make a pureed soup or sauce in your blender, always use something like water or stock first for better results!


It’s one thing to blend up some vegetables, it’s another issue entirely if you try to puree them.

There are certain vegetables that should never be blended because they have high water content and will become a liquid before your blender even begins to break them down properly. They include cucumbers, watermelon, celery, and lettuce.


Blenders and food processors can cause coins to explode before they die. In fact, you might find that the result is a lump of metal in one corner of your blender or food processor that’s become fused with whatever it landed on.

This means that your blender stops working until you manually remove this blockage, which is a huge inconvenience.


Rubber is a dangerous substance to put into your blender or food processor. This is because rubber is made from natural latex, and it doesn’t break down easily when blended up.

The results are usually the same as if you’d poured in some coins. Over time, this will block your appliance and stop it from working properly, which isn’t good for your wallet.


This one seems like common sense, but many people do try to blend knives up in their blender or food processor.

If you’re worried about dulling your knife by chopping with it, don’t put it into the appliance – sharp objects tend to cause lots of problems when they come into contact with rotating blades.

Hot liquids

Don’t put hot liquids in the blender, as this can damage its motor and other components. If you’re going to ruin a blender, do it on cold things.

Also, if the liquid is boiling hot the steam can explode the blender jar and cause severe damage. Try cooling the ingredients a little before blending.

Bones or seeds from the fruit

Bones are too hard and brittle for a regular blender to handle, which is why they can damage your blender and make it useless.

The seeds and peelings of fruits can make the flavor bitter or sour. Fruit seeds can also be toxic and cause some health risks, avoid them in your drinks.


Blending plastic or its components can heat up the material and can get tangled up. It can also melt at high blending speeds and cause toxic fumes and damage to blender blades.

Shrimp shells

You’re better off without the extra flavor. Not many of us can stand the unpleasant taste of the shrimp shells. You should never blend these shells in a blender to ruin the taste of your delicious recipes.

Unpeeled Bananas

The peel of the banana can flake off and get sucked up by your blender’s blades. If this happens, you could end up with a chunky mess. If your motor is powerful enough, the banana could end up over-blended and turned into a liquid.


In summary, there are certain things that can damage a blender and prevent it from working properly in the future.

If you’re careful about what you put into your machine and how you use it, your blender can serve you for years to come. Happy Blending!

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