Is your kitchen drawer full of plastic cooking utensils that could be harming you and your family? Toxic byproducts formed during plastic manufacturing and the ingredients of plastic itself can have harmful impacts on our health.
Here's what the research actually says, and what to use instead.
Are plastic cooking utensils bad for your health?
Yes, heat exposure causes plastic utensils to break down and release microplastic particles and chemical byproducts into food, which several health and research bodies have flagged as a concern.
Plastic tools chip, crack, and become brittle with repeated exposure to hot pots, pans, and dishwashers. As they degrade, small plastic particles transfer into whatever you're cooking — and eventually into your body.
In September 2019, the German Federal Institute for Risk Assessment warned that components of plastic utensils can migrate into food and become poisonous to the body. These findings highlight compelling reasons to ditch plastic cooking utensils and upgrade to more sustainable and healthy kitchen tools.
Scientists have been warning us for years about the dangers of continuous plastic exposure. The German Federal Institute for Risk Assessment (BfR) states that consuming as little as 90 micrograms of plastic from cooking utensils can pose significant health risks. When heated, plastic can release harmful byproducts called oligomers.
Do plastic utensils break down with heat?
When heated, plastics can also release compounds called oligomers, byproducts of the plastic manufacturing process, along with the plastic's own base chemical components.
Plastic utensils chip, crack, melt, and become brittle when regularly exposed to hot pots and pans, or even the dishwasher. When they break down into smaller particles, these plastic bits end up in your food — and eventually in your stomach.
Why are black plastic utensils a bigger concern than other plastics?
Black plastic utensils are more likely to contain flame retardants and heavy metals because many are made using recycled electronic waste, according to a 2018 University of Plymouth study.
These contain flame retardants like bromine and heavy metals such as lead, cadmium, and mercury. The study found toxic chemicals in 40% of black plastic utensils tested — at levels up to 30 times above what's deemed safe.
That study found toxic chemicals, including bromine-based flame retardants and heavy metals such as lead, cadmium, and mercury, In 40% of the black plastic utensils, toys, thermoses, and cocktail stirrers tested, with some items measuring up to 30 times above recommended safety levels. A separate 2018 University of Birmingham study found measurable concentrations of brominated flame retardants (BFRs) in 34% of the plastic kitchen utensils analysed.
The black colour itself comes from carbon black: a form of soot from incomplete combustion of petroleum, coal, or vegetable matter. The International Agency for Research on Cancer (IARC) has classified carbon black as "possibly carcinogenic to humans," citing the presence of polycyclic aromatic hydrocarbons (PAHs).
The International Agency for Research on Cancer (IARC) has also concluded that carbon black, used to colour black plastics, is “possibly carcinogenic to humans.”
Are black plastic utensils recyclable?
The vast majority of black plastic utensils can't be recycled. Their colour makes them invisible to the infrared technology used in recycling processes, meaning most end up in landfills, incinerators, or our waterways.
Do plastic utensils last as long as metal ones?
No way! Plastic utensils have a significantly shorter usable lifespan than metal tool, which don't degrade under heat.
Selecting kitchen tools made from highly durable, non-porous materials like stainless steel or titanium is a much better long-term investment. Non-porous, highly durable materials like stainless and titanium resist heat damage, don't harbour bacteria in surface cracks the way worn plastic can.
Do plastic utensils contain other harmful additives?
Chemical additives called phthalates give plastic its flexibility — but they come with serious health risks. They are known endocrine disruptors and have been linked to asthma, developmental disabilities, obesity, and even certain cancers.
Research published in the Journal of the Endocrine Society (2018) found that plastics contain many dangerous, endocrine-disrupting chemicals that leach into humans and the surrounding environment.
What should I use instead of plastic cooking utensils?
Non-porous metal utensils, such as stainless steel don't degrade under heat, don't leach chemicals into food, and last decades longer than plastic.
If you're already cooking with PFAS-free cookware like Solidteknics' AUS-ION™ wrought iron or nöni™ stainless steel pans, pairing them with plastic tools somewhat undercuts the point — heat-damaged plastic can still transfer into food regardless of what it's cooked in. Solid stainless steel or titanium utensils close that gap. No plastic, no coatings, no compromise.
Explore our Kitchen Tools range today.
FAQ
Is it safe to use plastic utensils occasionally? The BfR's guidance is to minimise contact time between plastic tools and hot food where possible, since migration of chemical components increases with heat exposure and contact duration.
Why is black plastic considered worse than other colours? Black plastic is more likely to be made from recycled electronic waste, which can carry flame retardants and heavy metals, and it's also largely excluded from standard recycling streams due to its pigment.
What's a healthier alternative to plastic cooking utensils? Seamless metal tools — they don't break down with heat and don't require any coating, so there's nothing to leach into your food.
References and further reading
- German Institute for Risk Assessment (BfR), 2019, Polyamide Kitchen Utensils: Keep contact with hot food as brief as possible
- Journal of the Endocrine Society, 2018, Chemicals Used in Plastic Materials: An Estimate of the Attributable Disease Burden and Costs in the United States
- Kuang, J., 2018, Brominated flame retardants in black plastic kitchen utensils: Concentrations and human exposure implications, University of Birmingham, ScienceDirect
- Turner, A., 2018, Black plastics: Linear and circular economies, hazardous additives and marine pollution, University of Plymouth, ScienceDirect
- Plymouth Marine Laboratory, 2024, New study shows plastic and non-stick cookware is likely adding thousands of microplastics into the human diet
- Schwarcz, J., 2024, The Dark Side of Black Plastics, McGill University
- Cole, M. et al., Microplastic and PTFE contamination of food from cookware, ScienceDirect
- Beyond Plastics, Why Black Plastics are Bad News
- International Agency for Research on Cancer (IARC), 1996, Carbon Black — Summaries & Evaluations
