Are Blender Bottles Microwave Safe?

Blender bottles are designed to make your life easier and more comfortable. It will also reduce your prep time and make it easy to go with your drink anywhere. This makes it highly portable and convenient. However, when it comes to how you can use your blender bottle, there are many opinions and conflicting information.

One of the most commonly asked questions is, are blender bottles microwave safe? The answer is yes and no. Many blender bottles in the market today claim to be microwave-safe. While blender bottles are made of plastic that’s BPA and Phthalate free, microwaving it is strongly discouraged. The bottle has a leak-proof seal that can cause pressure to build up in the bottle from the heat in the microwave and this can force the lid and flip caps to unexpectedly open and spray all the contents.

Are blender bottles microwave safe?

You can use blender bottles in the microwave, but with some precaution. Before putting your blender bottle inside the microwave, make sure you remove the metal ball in the bottle. Some bottles can release a plasticizer when placed in the microwave which can mix with your food.

Heating plastic in the microwave is said to release harmful dioxins that affect your health, but the plastic that makes the blender bottles doesn’t contain this harmful chemical. So, you can easily place the bottle in the microwave and your drink will be safe from dioxins.

However, this doesn’t mean that every bottle is safe to be used in the microwave. Check to see if the bottle has a label that says the bottle is microwave safe, if the bottle doesn’t have the label but its construction is BP-free, you can use it in the microwave.

Tips when microwaving your blender bottle

While there are no major issues with using a plastic blender bottle in a microwave, there are a few things you should take into consideration.

  • Though the manufacturers say you can microwave the cup, don’t do that before you remove the metal ball inside. Take it out then reheat your food or drink.
  • Be careful not to put the bottle in the microwave for more than 3 minutes, otherwise, the plastic might start to give way and make your food inedible.
  • Once you take the bottle out of the microwave, let it cool first to avoid burning your hands or face with the pressurized air in the cup. The sealing lids on the bottles prevent spillage, but when the liquid inside gets very hot and there’s built-up of pressure with no outlet. So, if you open the lid when the bottle is still hot, you can seriously burn or hurt yourself.
  • Don’t put the bottle in the microwave unless it’s necessary. You can use a jar to blend your smoothie or use an extra bowl, then transfer the ingredients from one container to the other before blending.
  • You can opt to use glass containers since they can easily handle the high temps. in the microwave without leaching harmful chemicals or causing safety issues. It’s also very easy to clean after use.
  • Make sure the blender bottle you buy has a BPA-free construction, however, this doesn’t guarantee that there are no traces of this harmful chemical and even a drop can cause serious damage to your health.
  • If you have a stainless steel blender bottle, don’t try and put it in the microwave. Warm the ingredients before putting them in the bottle.

Does it matter if your liquid is cold or hot liquid when using your blender bottle?

The answer to this question will depend on the plastic and the liquid. If your drink contains ice, you should wait for the ice to melt before you use the bottle with it because, like most plastic bottles, the cup can become brittle which makes it more prone to breaking or cracking due to the cold temps. If you decide to freeze the contents, don’t fill the liquid to the top, leave a bit of room and flip the cap open to allow the contents room to expand.

If the liquid you want to put in the bottle is hot, it’s best not to leave it in the bottle for too long because extended exposure to heat can melt or soften the plastic. Also, warm or hot liquids can build up pressure in the bottle and cause the flip cap to open suddenly and spray the content like pancake batter. So, when mixing such ingredients, you should place a finger over the flip cap while shaking the contents to avoid accidental spills.

Things you can make with your blender bottle

Food type How
Iced latte or coffee Add a few cups of cooled strong coffee or espresso into your bottle and a splash of milk, sugar, and cinnamon to taste then shake and pour in a glass.
Cocktails Add all the ingredients in the bottle, shake and pour into a chilled glass.
Butter Put some whipped heavy cream, salt, and a bowl of ice water and shake until you form butter.
Pancake batter Shake all the ingredients then pour onto a frying pan.
Pouring salad dressings and sauces Instead of using a spoon to scoop out the dressing from a bowl, use the bottle to easily pour on your food.
Balsamic vinaigrette Combine garlic, brown sugar, pepper, balsamic vinegar, salt, and olive oil, even add walnuts and blue cheese.


The answer to whether your blender bottle is microwave safe will depend on you. It’s important that you prioritize your safety and not put something that you’re not sure about in the microwave. Instead, use the best container for heating your food and one that can handle the hot temperatures in the microwave.


How much water does a blender bottle hold?

The blender bottle Classic can hold 28 ounces of water. You can leave the ball inside and it won’t rust peel or chip.

Can you put ice in a blender bottle?

Yes, you can put ice in the bottle, but don’t put too much ice as it will prevent the ball from moving around and not allow proper mixing of the ingredients.

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