Tupperware Care & Usage

How To Tell If Tupperware Is Microwavable? If Yes, How To Microwave It?

It sounds convenient to freeze food in a ziplock until it is time to push it into the microwave for reheating or defrosting when required. However, plastic zip lock bags and takeaway containers collected from restaurants are the most harmful ways of storing food. So why not use the reheat Tupperware microwave box instead? Here we will share some tips such as How to microwave Tupperware, How to tell if Tupperware is microwavable, steps to reheat food using Tupperware Microwave Containers and etc.

Estimated reading time: 8 minutes

Our food comes in contact with plastic every day. However, we rarely ever seem to care about which plastic is safe and deserving enough to hold your food and which is not. We admit that plastic comes in handy because it being lightweight, break-proof and cheap. 

Investing in Tupperware microwave containers makes reheating food easier and healthier. In fact, it is economical too. Why do we say that?

Here is the thing.

The Tupperware microwaveable containers are designed to save your time so that working women could equally enjoy the benefits. You can use the Tupperware microwave containers to heat and reheat food safely. Furthermore, they can maintain the texture, taste and quality of your leftover.

Though Tupperware microwave containers come with a limited lifetime warranty, you must use the containers the way they are meant to be used. This is crucial to prevent voiding the guarantee.

how to microwave tupperware

Tips to Reheat Food in Tupperware Microwave Containers?

Following these tips will keep your Tupperware microwave boxes new and your food will last the taste longer.

1. Reheat Required Food Only

microwave tupperware lid on or off

Fatty foods such as meat and cheese and food that are cooked using boiling water such as soup reach very high temperatures. Make sure to reheat the quantity you require than having to reheat the entire batch at once.

It is encouraged not to reheat the leftover more than once. So, take the appropriate portion of the leftover, reheat it and finish the food within 2 hours. If you are unable to consume all the food that has already been reheated, do throw it away. 

2. Check The Tupperware Microwave Safe Symbol

microwave tupperware lid on or off

Not all Tupperware containers are microwave safe. So, how to tell if Tupperware is microwavable? Just double-check the containers when inverting food into a Tupperware container for reheating. You will be able to see a microwave symbol as shown in the above picture.

By using a microwave-safe Tupperware container, you can avoid your food from being contaminated by chemical materials, especially when they are heated. Tupperware container that has microwave-safe symbol can withstand high temperature and sudden temperature changes. 

3. Put The Tupperware Lid On And The Vent Open

how to microwave tupperware

Have you ever wondered whether you should put the microwave Tupperware lid on or off? This is what we highly recommend.

Get Tupperware microwave containers with a vent. It is very important that you reheat your food using the microwave with the Tupperware lid on. Direct exposure to microwaves will turn the food chewy or beady and may dry up the broth. 

Keep the Tupperware lid on but the vent opens while microwaving to help the pressure escape gently. If your container does not have a vent, lifting the edges will do the same job.

Microwaving food with the Tupperware lid on is important to avoid food splatter. Additionally, it will help the food heat up faster and evenly. 

4. How To Microwave Food In Tupperware Container

how to microwave tupperware

Microwaves can create hot spots and cool spots in your food during the reheating process. These cool spots may lead to microbial contamination. Therefore, when you reheat the food, make sure you use this 3-steps reheating technique.

First, reheat your food. Then, stop in the middle of the reheating process and take the container out. Check and stir your food for a while. And then, put it back in the microwave and reheat it one more time. Take your food out and it is ready to eat. Hot and steamy.

So, remember this step: reheat, stir and reheat. 

5. Reheat In Timely Manner

We have been taught how to tell if Tupperware is microwavable in the last tip. Now you shall also reheat the Tupperware in timely manner. For proper reheating, start by heating your food for 2 minutes at a high temperature. Take the food out and stir. If the food is not warm enough according to your liking, reheat it one more time for 30 seconds on high.

To avoid your food from losing its texture or having a chewy and tough texture, make sure not to reheat your food for a longer time. Once your food changes its texture, it will be hard to enjoy it, especially for meat. 

6. Use Maximum Temperature To Reheat Food In Tupperware Container

Make sure you reheat leftover food to a maximum temperature of 165⁰F (70⁰C). This helps to kill the bacteria that your food might have come in contact with. The bacteria can grow in temperatures between 40⁰C and 140⁰F (4⁰C and 60⁰C). This is why it is important to reheat your food using the maximum temperature. 

Escherichia coli or E. coli is a type of bacteria that can cause diarrhea and sickness if you consume contaminated food. Clostridium perfringens bacteria on the other hand can grow in improper reheated gravies. This bacteria can cause nausea, vomiting, abdominal pain and diarrhea. 


7. Use Different Tupperware Containers For Refrigerating And Freezing

Apart from refrigerating, freezing is one of the best ways to extend your food life shelf. Both of these storage techniques help your cooked meal last longer. Airtight containers are the best option for freezing and refrigerating your food because they maintain the quality of the food. 

You can refrigerate food in microwave Tupperware but do not freeze using the same containers. The temperatures in the refrigerator and freezer are different. Using the same container may warp or break it.  

8. Read And Follow The Instruction

Last but not the least, read the instructions that come with each piece of the container you buy. We have all been there. We buy new containers or even electrical devices and they come with a user manual. Most of us will toss the user manual away and start using the items immediately.

Well, that does not seem so right. Reading and understanding the user manual is crucial. Directions in the user manual will provide you with recommendations on how to use it and other safety precautions. Sticking to it will make everything just so easier.


Using a Tupperware microwave box to reheat food is convenient and safe if you utilize it in the appropriate way. By following these handy tips on how to reheat food using a Tupperware container, you can prevent your food from being spoilt easily. Other than that, you will also be able to keep your Tupperware last longer.

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