Is it bad to microwave plastic?

It is bad to heat food in plastic

When heating water, overheating can occur: energy accumulates in the water without boiling and then, when you put a teaspoon, a bag of infusion, etc., the water could start to boil suddenly and burn you. Be careful and wear oven gloves, for example, in case there is splashing.

Sparks and even fire are produced if they are put in a microwave and heated. There are several theories to explain this, one being that the molecules ionize and create a glowing plasma that can explode.

The packaging of some convenience foods is made of expanded polystyrene (the typical white trays). This product is not ready to be used in the microwave, because it cannot withstand the high temperatures that occur inside.

Do you want to buy a microwave oven? Are you going to change the one you have? Whether you are looking for a microwave with grill, a basic model or a combi microwave, with the functions of a microwave and a conventional oven, we help you to choose the one that suits you best: check our comparator, where you will find features, results and prices of more than 150 appliances.

Plastic can be microwaved

When heating water, overheating can occur: energy accumulates in the water without boiling and then, when you put a teaspoon, a bag of infusion, etc., the water could start to boil abruptly and burn you. Be careful and wear oven gloves, for example, in case of splashing.

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Sparks and even fire are produced if they are put in a microwave and heated. There are several theories to explain this, one being that the molecules ionize and create a glowing plasma that can explode.

The packaging of some convenience foods is made of expanded polystyrene (the typical white trays). This product is not suitable for use in the microwave, because it cannot withstand the high temperatures that occur inside.

Do you want to buy a microwave oven? Are you going to change the one you have? Whether you are looking for a microwave with grill, a basic model or a combi microwave, with the functions of a microwave and a conventional oven, we help you to choose the one that suits you best: check our comparator, where you will find features, results and prices of more than 150 appliances.

Microwave heating with lid or without lid

Taper, tartera, tupper, are all the ways we have to call this kitchen accessory so versatile and an essential in our day to day. They are not only used as practical containers for storing open food or “leftovers” from Sunday lunch, but also serve as cooking containers in many cases, or as lunch plates on which to eat in the office.

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Soft plastic, hard plastic, glass or even disposable, these are the different types of tupperware that we all have and use for almost everything, but there are many myths about their use and doubts such as: are we using them correctly? Is it true that they have an expiration date? Why do they catch odors?

There are many types but only some tuppers are suitable for the microwave. Nothing serious happens if we heat our food in this way, but it is true that we risk the container cracking, changing shape or warping.

Both glass and plastic tuppers are suitable for the microwave as long as they have the symbol on their base that they are suitable, ideally only those that have a symbol on their base similar to a zigzag, which refers to the type of plastic they are made of.

What releases plastic when heated

The microwave is one of the most used appliances in the kitchen, because it is a way to heat food easily and quickly; however, it is important to know which containers can be put in the microwave, because not all tupperware or refractory containers are suitable.

They are the best containers to put in the microwave, because when they are heated they do not release toxic substances; however, you should use those that have the label that can be used in the microwave.

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They are often used in fast food such as instant soups; however, they are not recommended for use in the microwave, because in addition to the ink they contain, thanks to the food brand seals, the plastic material could also give off toxins.

When you want to check if a container is suitable for use in the microwave, do this test: put it in the appliance with a cup full of water and program it for one minute. If it gets hot, don’t try to use it, but if it comes out cold, you can use it as many times as you like.