Will Plastic Melt in the Oven? (YES)

Alert! Beware of any hazardous objects. 

You must have read this a million times on different electrical equipments!

Here I am going to write about the oven and plastic. 

Though they do make our day-to-day life easier, but misusing them can be detrimental to you. For example, an oven is used to conduct heat to an object. On the other hand, plastic is a polymer of several chemical compounds. 


It can actually melt in contact with temperature. So now the question is, will plastic melt in the oven? The answer is yes. Any plastic application exposed to heat will burn or melt because the melting point of the plastic is very low.

Will Plastic Melt in the Oven?

We know that ovens heat something, especially to make or heat food. The oven can heat up to 100 degrees Fahrenheit.

On the other hand, plastic melts at very low temperatures, especially polythene. However, the chemical composition of plastics differs in the melting point. Plastics are generally thought to withstand an average of 212 degrees Fahrenheit.

Ovens used for cooking can be set to a maximum temperature of 550 degrees Fahrenheit. At this temperature, any plastic is bound to melt. The downside of plastics is that they start to melt when exposed to hot temperatures. 

Needless to say, no matter how low the temperature is set by placing a piece of plastic in the oven, the plastic will soften even if it does not melt.

Related Article: Best Convection Oven for Sublimation Mugs

Will 170 Degrees Fahrenheit Melt Plastic?

The melting point of plastic is determined based on its composition mentioned earlier. There are different types of plastic products, such as polythene, PVC (Polyvinyl chloride), HDPE (High-Density Polyethylene), etc.

Polythene has the lowest melting point of 340 degrees Fahrenheit. On the other hand, PVC has a melting point of 320-410 degrees Fahrenheit. Again the melting point of HDPE plastic is 410-518 degrees Fahrenheit.

So it is understood, 180 degrees Fahrenheit temperature is very low for them. That means the plastic will not melt at this temperature. 

But there is a condition here. If the plastic is kept for a long time at a temperature of 180 degrees Fahrenheit, it will continue to be soft even if it does not melt. You can even discover the smell of burning plastic.

How Does Plastic not Melt in the Oven?

First of all, why would you burn a piece of plastic in the oven to make it messy? It will be difficult to clean later. Since the melting point is too high or too low, the plastic can be melted and burned.

When you place plastic in the oven at a high temperature, the plastic will burn in the fire, and the molten plastic will accumulate on the bottom of the oven. Therefore, it will not be easy to clean. Moreover, since the plastic is not eco-friendly, the burnt plastic’s odour will pollute the environment.

Any plastic emits toxic gases. Yes, plastic can be recycled by melting and giving it a new shape. However, it is not convenient to use an oven for that.

What kind of Plastic Can go in the Oven?

Ordinary plastics are not suitable for placing in ovens. Instead, a specific type of plastics is used for the oven called “Oven Safe Plastic”. 

These types of plastic containers are used for heating or cooking food. If necessary, the food can be reheated in the same container.

Heating food using Oven Safe Pot does not have to be a hassle to transfer it to another pot. So, the use of these utensils is seen more especially in restaurants. Now let’s talk about the structure of the oven-safe utensils.

Oven safe containers are made of CPET plastic. However, it may contain a mixture of aluminum and paperboard that can withstand high temperatures of at least 400 Degrees Fahrenheit.

The main thing is to understand which container is safe and or not. But how do you understand that?

The oven-safe has a specific mark on the container that the deck can easily identify.

Can You Put Plastic Paper to a Ready Meal in the Oven?

The easy answer is no. Whether the food is cooked or frozen, the plastic should be removed and then transferred to the oven.

I used to order frozen food at home during Corona Pandemic. So I ordered frozen pizza once.

I didn’t know food-grade polythene paper was attached under the pizza. So without checking, I let it heat up in the oven. Then during the meal, I discovered a bad smell. The upper side of pizza was able to have. But the lower part was not suitable for eating at all.

So you understand that it is better not to use any plastic paper while using the oven.

Q1#. Is melted plastic in the oven dangerous? 

Molten plastic is toxic. If it enters the stomach with your food, it will be harmful to you. Not only that, but the molten plastic also gives off a foul odor.

Q2#. What is the oven-safe plastic symbol?

It is very easy to recognize Oven Safe plastic. When buying plastic products, if it has 3 waves like indicator in an oven logo on it, it should be understood that it is oven safe.

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Plastic is not eco-friendly. Although they can be melted in the heat, cannot be digested with mud. As a result, it pollutes the environment. Therefore, the use and production of plastic products should be reduced or recycled again and again to make them usable.

One more thing is that after using the applications made of plastic, it should be thrown in a safe place, and it should not be burnt here and there. Toxic gases will cause air pollution. So we have to remember that we will be healthy if we have a good environment.