11 everyday kitchen tools that are harming your family – and the safe swaps you need
If you take pride in maintaining a clean kitchen, you might be surprised to learn that there's one culprit that could be harming your health that you've likely overlooked: microplastics. Fortunately, there are things you can do to prevent these tiny particles from contaminating your food.
Read on for practical tips and easy, everyday swaps that will kick microplastics out of your kitchen. You'll be surprised how simple it is to make your home cleaner and safer for the whole family.
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What are microplastics?
Microplastics aren’t just tiny, visible bits of plastic floating around – they’re found everywhere, from our oceans and soil to the very food and air we take in. These sneaky little particles are smaller than 5mm, and they come from bigger plastics breaking down or products that were tiny from the start, like old microbeads in cosmetics or fibres from synthetic clothing.
Microplastic particles can carry chemical additives used in plastics, such as PFAS (used for non-stick and water-repellent coatings), BPA (used in hard plastics and can linings) and phthalates (used to make plastics flexible). These chemicals aren’t microplastics themselves, but they love to tag along.
Where do microplastics lurk in your kitchen?
Plastic containers are super handy, but heating your food in them – especially in the microwave – can make tiny plastic particles and additives leach into your food.
‘A 2023 study measured the number of microplastic particles released from three minutes of microwave heating in a plastic container. The result was that 4.2 million microplastic particles were released, as well as 2.11 billion nanoplastic particles from a single square centimetre of the container!’ says Dr Deborah Lee from Dr Fox Online Pharmacy. ‘Even refrigeration or room-temperature storage in these boxes releases microplastics.’
Plastic chopping boards are another culprit. Knife grooves and scratches can release microplastic fragments into whatever you’re chopping. ‘A further 2023 study calculated that one year of cutting on a polyethylene board would release around 50g of microplastics,’ says Dr Lee. The same is true for plastic utensils, which start to break down over time, especially with heat and heavy use.
Those non-stick coatings on your pots and pans are basically plastic. When they get scratched or overheated, tiny bits come off into your food. Cling film and plastic food bags also wear down when they’re warmed or stretched, letting fragments mix with your food. Even some tea bags and food packaging contain plastic fibres or linings that can release particles when they meet hot water or steam.
‘In another study, microplastics were released from washing up a melamine bowl. This was also the case for takeaway polystyrene boxes and high-density polyethylene bags,’ says Dr Lee. ‘We need to get away from using these products to reduce the microplastic contamination of the human diet,’ she stresses.
Why are scientists so worried?
It’s not just that tiny bits of plastic can end up in our food and therefore in our bodies – research suggests they may actually interact with our bodies in ways that could matter for our long-term health.
Microplastics have been found in human blood, lungs, and even the brain and placenta, showing that they can move past natural barriers in the body. When your immune system tries to deal with these particles, it can lead to stress and inflammation. This type of response is something your body doesn’t want long-term, and it has been linked to chronic illnesses.
Chemicals like BPA, PFAS and phthalates – often attached to or carried by microplastics – can mess with your hormonal system by mimicking or blocking natural hormones. This can affect everything from metabolism to reproductive health.
‘There is no doubt microplastics are now an area of medical concern,’ agrees Dr Lee. ‘The International Agency for Research on Cancer (IARC) has stated that perfluorooctanoic acid (PFOA) may be carcinogenic to humans. In women, PFAS have been reported to disrupt the endocrine system, affecting fertility, control of body weight, thyroid disease and breast problems.’
Lab studies and some human evidence have also suggested that microplastics, or the chemicals they carry, may be associated with digestive and reproductive issues, respiratory irritation, immune system disruption and cardiovascular problems.
Microplastics linger in the environment for hundreds or thousands of years, as they don’t break down in the usual sense. That means once they’re out there, they keep getting redistributed through water, soil and air. ‘One US study estimated the average adult has around 5g of plastic in their body – a teaspoon!’ says Dr Lee.
It’s important to stress that experts are still figuring this out. We don’t yet have clear proof of exactly how much harm microplastics cause in everyday life, but the fact they’ve been found inside our bodies at all has put scientists on alert.
What can we do?
‘Reducing exposure to microplastics makes absolute sense,’ says Dr Lee. ‘We should all do what we can to minimise our use of and contact with plastics in all aspects of our daily lives.’
Luckily, there are plenty of practical, everyday hacks to limit microplastics and related chemicals in your kitchen and daily life – and you don’t need to overhaul everything overnight.
Start with easy swaps, choosing materials such as glass, stainless steel, ceramic, cast iron, wood and bamboo for cookware and storage. Trying to throw all your kitchen plastics out at once isn’t an environmentally friendly approach. Instead, begin with items that show obvious wear and tear, like a chopping board with deep cuts and grooves, and gradually replace them with plastic-free alternatives.
If budget allows, choose wooden or bamboo cookware that is made from a single piece, rather than those constructed from multiple wood pieces and assembled with glue that may contain formaldehyde.
Natural fibres like cotton, hemp, sisal and coconut fibre are great, too – not only do they help cut down on microplastics, they’re also biodegradable and far more sustainable, so you’ll be doing your bit for the environment.
Avoid heating food in plastic containers – even those deemed as ‘microwave-safe’ can release tiny particles. Instead, transfer leftovers to glass or ceramic containers before heating.
Buy unpackaged fresh produce to reduce the amount of plastic your food touches. If produce is wrapped, remove it and transfer to a reusable container at home.
And finally, consider your cooking style – preparing meals at home is the best way to avoid heavily packaged foods and cut down on plastic exposure overall.
While the full impact of microplastics on our health is still being studied, taking steps to reduce our exposure is a simple and effective way to protect ourselves and our families. Every small change adds up, helping us reclaim control over what ends up on our plates – and in our bodies.
11 easy eco swaps
Want to remove microplastics from your kitchen? Here are 11 simple swaps for cooking, cleaning, storing and serving food.
DITCH: Synthetic sponges
SWITCH: Cellulose sponges
Cheap sponges are plastic-based, releasing microplastics into the water – and onto kitchen surfaces. Sponges made from vegetable cellulose (wood pulp) are super-absorbent and biodegradable. Many also come compressed to save on cupboard space, springing to life with water when ready to use.
DITCH: Plastic storage jars
SWITCH: Glass storage jars
With plastic storage jars, microplastics and chemicals can silently leach into your dry goods. Glass is non-porous and easy to sterilise, making it a much safer option, while also being easier to recycle or repurpose.
DITCH: Plastic utensils
SWITCH: Stainless-steel utensils
As well as being able to tolerate higher temperatures, metal utensils are also better for your health. If you prefer a less abrasive option that will be kinder to your pots and pans, choose wooden utensils instead.
DITCH: Non-stick pans
SWITCH: Cast-iron pans
Non-stick pans use coatings like PTFE, which can break down and release ‘forever chemicals’. Cast iron, however, develops a seasoned surface from polymerised oil – this natural non-stick layer doesn’t degrade in the same way as synthetic coatings.
DITCH: Plastic lunchboxes
SWITCH: Sandwich wraps
Some plastic containers – especially older or scratched ones – could leach chemicals into your otherwise healthy lunch. Instead, opt for quality reusable wraps made with food-safe natural materials.
DITCH: Plastic drinks bottles
SWITCH: Stainless-steel bottles
Stainless-steel bottles avoid microplastic shedding, keeping your drinks purer, while also being durable, reusable, and better for reducing long-term plastic waste.
DITCH: Plastic chopping boards
SWITCH: Wooden chopping boards
Wooden chopping boards are considered better than plastic for both food safety and performance, as long as they’re cared for properly. Always wash by hand with warm water and mild soap, scrub both sides, and dry immediately with a towel.
DITCH: Plastic scrubbing brushes
SWITCH: Bamboo scrubbing brushes
Bamboo is a sustainable material that will biodegrade rather than end up in landfill like plastic. Look for sisal bristles too, which are fully biodegradable and won’t release microplastics into the water system.
DITCH: Plastic kettles
SWITCH: Non-plastic kettles
Enamel and other non-plastic kettles (like stainless steel or glass) are a safer choice. Plastic kettles, even ‘BPA-free’ ones, can still release plastic particles and additives into the water when boiled.
DITCH: Cling film
SWITCH: Fabric food covers
Reusable fabric food covers – whether beeswax-coated fabric, or plain cloth – are non-toxic and food safe, whereas traditional cling film often contains plasticisers and other potentially harmful additives.
DITCH: Plastic mixing bowls
SWITCH: Ceramic mixing bowls
Ceramic is made from natural clay that’s fired at high temperatures and glazed to a smooth, non-reactive finish. That means it won’t release chemicals into your food the way plastic can – especially when mixing hot, acidic or oily ingredients.
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