Can You Microwave Styrofoam, And Should You

Last Updated on August 31, 2021

Microwaves have been around for a long time and are fantastic for tasks such as warming meals in the kitchen. They make cooking and warming so much easier than before.

However, you may be considering which sort of microwave oven crates are ideal for microwaving and heating your drinks and meals owing to fitness concerns. This page explains how to use microwave styrofoam, if it’s safe, and what safety precautions you should take.

What Is Styrofoam?

Styrofoams are made from polystyrene plastic that is used by manufacturers to create packaging products like cups, plates, bowls, trays, etc. It can also be found inside many food containers including those containing hot foods or beverages.

The material has become popular because it’s lightweight, durable, easy to clean up after spills, and doesn’t melt when heated. The name "Styrofoam" was trademarked by the Dow Chemical Company. Styrofoam is a type of polystyrene spray commonly seen in the building industry.

During World War II, Styrofoam was developed as a versatile electrical insulator. It has also discovered a variety of gadgets, including throwaway microwave containers, plates, and coffee cups. Polystyrene is a kind of plastic that, when heated, tends to release hazardous compounds. This is one of the most common reasons for people’s mistrust of Styrofoam, and it’s likely one of the reasons you’re reading this page.

The chemicals produced from Styrofoam and other polymers burned to extremely high temperatures do not have any immediate obvious adverse effects, but there is concern about the long-term hazards they entail. On the internet, there is a lot of information and disinformation about this subject. You may get a lot of information about "Can you microwave Styrofoam" by doing a simple Google search.

They include a solvent called styrene, which has sparked considerable controversy since it has been linked to cancer in both animal and human studies.

What is a Microwave?

A microwave oven uses electromagnetic radiation at very specific frequencies to heat objects placed within its cavity. EMR waves penetrate all materials except metals, glass, ceramics, certain plastics, and water. These properties allow them to cook food quickly without burning it.

There are two types of microwaves: low frequency and high frequency. LF microwaves produce lower power levels and cover shorter distances compared with HF microwaves. Both types work on similar principles; however, their wavelengths differ greatly.

Can You Microwave Styrofoam?

Polystyrene is generally safe if handled properly. However, it should never be left unattended while being heated. If you don’t know how to handle it safely, then avoid using it at all costs.

Microwaving polystyrene foam crates has raised some concerns. One major reason is that they contain a solvent called styrene, which has been linked to cancer in people and animals in studies.

When meals and liquids are microwaved in styrofoam or plastic containers, harmful chemicals utilized in the construction may leak into the food. This is especially true of fatty meals like meats and cheeses. It’s worth noting that cold drinks and meals cooked in Styrofoam boxes aren’t as dangerous as hot food. Chemicals are leached into your food as a result of the heat.

The Food and Drug Administration (FDA) operates plastic and polystyrene crates, cups, and plates and evaluates their security and usage in microwave ovens, which is noteworthy.

Microwave protection has been tested on polystyrene or plastic goods that bear the microwave’s careful marking. Microwaving food in polystyrene crates that are not marked as microwave protected, on the other hand, is not recommended because their safety is unknown. These safeguards are not limited to microwaves and apply to a variety of healing techniques.

How To Safely Heat Food?

If you’re concerned about heating food in a polystyrene container, follow these guidelines to microwave food safely:

Make use of a microwave-safe container.

Whether you’re using a styrofoam container, check to see if it’s marked with a microwave warning.

Before microwaving, place food on a ceramic or glass plate.

Alternatively, before warming the meal, place it in a ceramic, glass, or pyrex container.

Make use of a stove or an oven.

Transfer the meal to another utensil, pot, or pan to heat on the stovetop, or into a baking sheet to bake in the oven, to avoid any potential damage.

Examine the area for any cuts or fissures.

Low-quality styrofoam and plastic containers, as well as those with rips or splits, must be discarded since they may leach potentially hazardous substances.

Before heating the container, drain it.

This prevents pressure from building up inside the container, causing the food to erupt.

Remove the container with care.

To protect your hands, use mittens or gloves. Avoid touching the container after removing it from the microwave. Do not leave the container standing upright when cooling down.

It can explode due to internal pressure buildup. Use caution when handling the container once cooled off. Never put anything directly onto the container; instead, transfer the contents to another vessel. Always keep children away from the container until it cools completely. Children could accidentally ingest the material. Keep pets out of reach.


It’s always better to be on the side of caution than to jeopardize your health. If you’re going to microwave Styrofoam, make sure it’s the microwave-safe styrofoam variety, not the regular sort.

Latest posts by Daisy (see all)

Leave a Comment