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InsightHorizon Digest

What happens if you inhale Styrofoam

Author

Isabella Browning

Updated on March 30, 2026

Exposure to polystyrene dust as a result of cutting Styrofoam can result in skin, eye and lung irritation. Itchy eyes and skin and difficulty breathing can result from chronic exposure to Styrofoam dust.

What happens if you inhale a piece of Styrofoam?

Exposure to polystyrene dust as a result of cutting Styrofoam can result in skin, eye and lung irritation. Itchy eyes and skin and difficulty breathing can result from chronic exposure to Styrofoam dust.

Is Styrofoam dust toxic?

Expanded polystyrene is non toxic and is not irritating to the skin or eyes. The products are not biodegradable, non toxic but small particles may have physical effects on aquatic and terrestrial organisms.

How is Styrofoam harmful to humans?

Polystyrene foam contains the chemical styrene, which has been linked to cancer, vision and hearing loss, impaired memory and concentration, and nervous system effects…the list goes on.

What happens if you eat a small piece of Styrofoam?

If a small amount of Styrofoam is accidentally eaten it probably won’t harm the body. A large amount of Styrofoam may get stuck in the esophagus, stomach or the intestines. It won’t be digested, potentially blocking the system up and causing problems.

Why did McDonald's stop using Styrofoam?

It stopped using foam packaging for hot beverages in 2012 after receiving pressure from As You Sow, a nonprofit that promotes environmental and social corporate responsibility. The only remaining foam used in McDonald’s stores today is for cold beverages.

Is Styrofoam cancerous?

In the case of polystyrene, tiny amounts of styrene may remain following manufacture and it’s this substance that may migrate. In 2014, the National Research Council in the US reviewed the evidence and concluded that styrene is “reasonably anticipated to be a human carcinogen”.

Is it safe to drink out of Styrofoam cups?

When exposed to heat or acids, these chemicals can leach out of the Styrofoam in small amounts. This is partly why Styrofoam is not considered microwave-safe, as the plastic also breaks down easily. However, if used to drink or eat cool items, Styrofoam is safe.

What's worse plastic or Styrofoam?

Styrofoam insulates much more effectively than plastic, which means your cold drinks stay colder longer and your hot drinks stay hotter.

What are the effects of Styrofoam?

Chronic exposure results in more severe effects including depression, headaches, fatigue, weakness, hearing loss, and disrupted kidney function. The manufacturing of polystyrene requires the use of hydrocarbons such as styrene and benzene.

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Are fumes from cutting Styrofoam toxic?

Inhalation may cause irritation and throat, including symptoms of headaches, dizziness and confusion. Along with toluene, IARC classifies xylene as non-carcinogenic to humans (Canadian Centre for Occupational Health and Safety, 2017).

Is melting styrofoam toxic?

Styrofoam is polystyrene, so melting polystyrene gives liquid styrene. The fumes of styrene are moderately toxic when inhaled. In practice, it is not easy to melt polystyrene without burning it, except in a lab. Burning polystryere produces many other toxins, some worse.

Does Styrofoam expand in your stomach?

EPS is popularly used as an insulator for food and packaging. … It is even more important for parents to put measures in place to prevent their children from swallowing Expanded Polystyrene as a large amount of the substance can get stuck in the stomach, intestines or even esophagus, causing several problems to the body.

Is hot food in Styrofoam safe?

Hot foods, oily foods, acids and alcohol cause Styrofoam food containers to partially break down, leaching styrene into whatever food the container is holding, according to a fact sheet on Styrofoam compiled by Northern Illinois University. … It also advises against microwaving the containers.

Can you microwave Styrofoam for 30 seconds?

You can surely microwave Styrofoam for 30 seconds, but not more than that. If the temperature of the material reaches 200 degrees Celsius or more, the Styrofoam will start to melt and release toxic chemicals that can leach into your food and make it extremely harmful for your health.

Which countries have banned Styrofoam?

Bans on polystyrene food items are in place all over the world: in major cities such as Oakland, San Francisco, and Chicago; in the neighboring states of Maine, New York, and Vermont; and countries such as China, India, and Taiwan.

Why did McDonald's abandon foam for coated paper November 1 1990?

McDonald’s refused to eliminate their use of Styrofoam in their packaging of sandwiches. … They asked for food wrapped in paper but because of the franchise license the restaurant couldn’t change the packaging. The win was big. McDonald agreed on November 1, 1990 to stop using Styrofoam in all of their sandwich packing.

What are McDonald's cups made out of?

McDonald’s to Phase Out Plastic Cups. McDonald’s Corp. confirmed that it is transitioning from polystyrene beverage cups to a fiber-based paper cup for its McCafé hot drinks in a multiyear rollout at its more than 14,000 restaurants in the United States.

What are McDonald's cups made from?

The cups are made from previous single-use coffee cups by circular design brand Circular&Co. The packs include engineered polypropylene (PP) plastic, as this is durable and easily cleaned, but the amount of plastic has been reduced by using recycled paper cup material in the outer insulation layer.

Why should we stop using Styrofoam?

Styrofoam will break down into microscopic styrenes and other harmful chemicals, and they will linger in the soil and water for centuries to come. It’s an especially serious problem in our world’s oceans.

What can replace Styrofoam?

  • Corn-Based Packaging.
  • Starch-Based Loose-Fill Materials.
  • Molded Fiber or Molded Pulp.
  • Biodegradable foam.

Can hot water melt styrofoam?

Styrofoam is an insulator, making it very poor at conducting heat. Heat can’t pass on through to the water, so the Styrofoam disintegrates. …

Is hot water safe in styrofoam?

In Styrofoam and PS cups studies, hot water was found to be contaminated with styrene and other aromatic compounds. It was observed that temperature played a major role in the leaching of styrene monomer from Styrofoam cups. Paper cups were found to be safe for hot drinks.

Does alcohol eat through styrofoam?

The styrene monomers will break down, not only this but drinking out of foam cups can be toxic due to the chemicals Benzene and Styrene in the styrofoam. Do not drink tea with lemon, coffee with dairy cream, fruit juices, alcoholic beverages and wine.

Does Styrofoam breathe?

A styrofoam is as bad a breathing material as plastic, hence the need of good ventilation holes. Drilling small holes into the walls/lid is not an effective way to provide ventilation to your bin, even if you drill a lot of holes; gas can be exchanged but there is not enough air flow on the surface of the bedding.

What temperature does Styrofoam Leach?

(2008) found styrene concentrations ranging from 45 to 293 ppb in water under leaching conditions of 24–80°C for 30 min in a polystyrene cup.

Is burning XPS foam toxic?

To get the polystyrene foams to actually combust and burn you have to have an extremely hot fire, much hotter than our tools get, burning directly on the foam to begin with. … They told us that the fumes from cutting their foam with a hot wire are not toxic, but cutting should still be done in a well-ventilated area.

Is burning polystyrene illegal?

You must only burn dry materials, such as paper and untreated wood. You must not burn household waste, e.g. food and plastic packaging, that should go into your general waste or recycling bins. Don’t burn plastic, polystyrene, aerosols, tyres, canisters, painted or treated wood, or anything containing foam or paint.

Does Styrofoam show up on xray?

Expanded polystyrene (EPS) foam is widely used in building and construction applications for thermal and acoustic insulation. This material is nearly transparent for X-rays, making it difficult to characterize its pore structure in 3D with X-ray tomography.

Is styrofoam safe for coffee?

Polystyrene foam cups contain styrene – a chemical compound that is increasingly suspect. … Based on what we now know, you’re probably safe using styrene foam cups for cold drinks, but I wouldn’t use them for hot coffee or tea, and I would avoid using plastic containers for hot foods.

Can styrofoam be steamed?

In contact with heat, it will start to melt or break down, causing the chemicals — dioxin, benzene and styrene — to seep into the liquid or foods. … Don’t tapau (take away) steaming hot foods and drinks in styrofoam containers or have food wrapped in wax-coated plastic-bonded brown paper.