Is Tupperware Microwave Safe?

Tupperware is one of the most iconic kitchen products ever. We use it for almost everything, from freezing leftovers to carrying your lunch. But can you use Tupperware to reheat food?

To answer that, we first need to know if Tupperware microwave safe?

I started organizing my kitchen, pantry, and fridge over the past couple of months. And almost every other post on Pinterest suggested that I use Tupperware containers.

And, I thought, I’m storing my leftovers in it anyways. Wouldn’t it be more convenient to microwave the Tupperware to reheat the food? So, I went online and googled if Tupperware is microwave-safe. I got mixed results.

But, I researched the subject for a few hours. And after buying Tupperware from many brands, I finally got my answer. If you are also curious about it, keep reading.

Is it safe to microwave Tupperware?

According to consensus, Tupperware containers have been tested many times. And they are safe to microwave. But, different Tupperware containers are made with varying types of plastics. Hence not all the Tupperware is safe to microwave.

The one thing that determines if Tupperware like those from Rubbermaid is microwave-safe. But, if your Tupperware has BPA-free plastic, it is microwave-safe.

Looking at the bottom of the Tupperware is another way to check its microwave-safe factor. If it has a microwave-safe label, then you can microwave it. There is a chance it does not say that it is microwave-safe. In that case, you should neither microwave it nor put any hot food in it.

The microwave-safe label looks like 3 wavy lines on top of each other. But, if the wavy lines are crossed, it refers to the not microwave-safe sign.

Look for the number 5 symbol. It also shows that the Tupperware is made with microwave-safe plastic. If any other plastic container has a number 5 symbol, it might also be microwave-safe.

Can you microwave Tupperware?

Yes. You can microwave Tupperware as long as it has a microwave-safe label on its bottom. If the Tupperware does not have this label, microwaving it can melt the plastic. And evenly, it can ruin your microwave.

There is always a never-ending debate if Tupperware is microwaveable or not. The answer varies from product to product. Not all Tupperware manufacturers use the same plastic to make the containers.

Reading the product description is also a great option. If you can or cannot microwave the Tupperware, it is by reading the product description. If it says that the Tupperware is made with microwave-safe plastic, you can microwave it.

But, what if the Tupperware is not made with BPA-free plastic? Then there is a high chance that it will melt in the microwave.

Tupperware Microwave Safe Symbol

I keep asking you to check the Tupperware’s bottom for the safe microwave symbol. But what does the Tupperware microwave safe symbol look like?

The Tupperware microwave symbol is three wavy lines on top of each other. The symbol looks like waves. If your Tupperware has this microwave-safe symbol, then you can microwave it.

But, what if the Tupperware does not have the three wavy lines symbol? In that case, it is not microwave-safe. If the wavy lines have a cross, it also means the same thing. In both of the said situations, avoid microwaving Tupperware.

Can you microwave Tupperware with a lid?

Yes, you can microwave a microwave-safe Tupperware with a lid. But, ensure that the lid comes with Tupperware.

It is necessary to only microwave the Tupperware with the lid that came with it. If the Tupperware you have is microwave safe, its lid would also be microwave safe.

But what if you microwave a microwave-safe Tupperware with a random lid? Then there are chances that the lid is not microwave-safe. The lid can melt and ruin the food, Tupperware, and your microwave.

There is another reason to only microwave a Tupperware with its designated lid. Microwave-safe Tupperware comes with a vented lid. The vented lids are much different than airtight lids.

This lid must be open when microwaving food in the microwave. The vent prevents the pressure from building up and exploding the Tupperware.

What happens if you put Tupperware in the microwave?

Two main things can happen when you put Tupperware in the microwave. One, the Tupperware starts melting. And two, nothing happens to the Tupperware, but the food gets warm.

How can you know which of these scenarios will happen when you microwave the Tupperware? Well, the answer is simple. If the Tupperware has the microwave-safe symbol, it will withstand the heat. But it will also allow the food to get warm.

But, what if the Tupperware lacks the microwave-safe symbol? Then it will start distorting and melting. 

Tips to Microwave Food in the Tupperware

Microwaving food in Tupperware is not as easy as it sounds. One wrong step and the Tupperware can melt or even explode.

The following are some of the best tips for microwave food in Tupperware.

  1. Ensure the container has a Tupperware microwave-safe symbol at the bottom. Only put it in the microwave if you can see the label.
  2. What if you are microwaving a microwave Tupperware with a lid? Ensure that the lid comes with the Tupperware. Because not all the lids are microwave-safe. 
  3. Open the vent of the Tupperware lid while microwaving. The vent will let the steam out of the Tupperware. And prevent the container from exploding.
  4. Microwave the Tupperware for short time intervals.
  5. Never microwave a Tupperware for more than 3 minutes.

Frequently asked questions

How do I know if my Tupperware is microwave safe?

There is only one way to know whether your Tupperware is microwave-safe. And that is by looking at the bottom of the Tupperware.

Microwave-safe Tupperware has the microwave-safe label at the bottom. This label or symbol looks like 3 wavy lines on top of each other.

Suppose your Tupperware does not have this symbol. Or if it has three wavy lines, but they are crossed. Then the Tupperware is not safe to microwave.

Are all Tupperware microwaves safe?

No, not all Tupperware is microwave safe. Several different companies produce Tupperware, and they use different types of plastic. As the standard varies between each manufacturer, the microwave-safe factor also varies.

Some Tupperware manufacturers use microwave-safe BPA-free plastic. Meanwhile, other manufacturers do not.

But what is the easiest way to know if your Tupperware is microwave-safe or not? Just look at its bottom. Microwave-safe Tupperware has the Tupperware microwave-safe symbol.

Is Rubbermaid Tupperware microwave safe?

Yes, Rubbermaid Tupperware has the microwave-safe label on the bottom. Hence they are microwave-safe.

But, you should still check the label yourself or read the product description. This small step will ensure that the Tupperware you buy is 100% microwave-safe.

How long can you microwave Tupperware?

You can microwave a Tupperware for 3 minutes. Even if a Tupperware is microwave-safe, you should not microwave it for more than 3-minute.

Tupperware is designed for storing, freezing, thawing, and sometimes heating food. But these containers are not suitable for cooking. So, microwave them for short intervals of time only.

What are the dangers of using Tupperware for microwaves?

All the Tupperware is not dangerous to microwave. But, you should never microwave a Tupperware that is not microwave-safe.

The reason behind this is simple. Brands make the non-microwave-safe Tupperware with toxic plastic. And when you heat these Tupperware, the plastic releases toxic chemicals. These chemicals can leech onto your food.

Ingesting such chemicals can worsen your health. What if you continue microwaving food in non-microwave-safe containers? In that case, it can even lead to cancer.

Final Words

So, is Tupperware microwave-safe or not? To be honest, the answer depends on the manufacturer. If the brand used microwave-safe plastic, then the Tupperware is microwave safe. Otherwise, no, you should not microwave it.

But there is an easy way to check if a Tupperware is microwave-safe or not. Just look at its bottom. If the Tupperware has the microwave-safe label, then you can microwave it.

So, what are you waiting for? Start checking your Tupperware.

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