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microplastics in water

Microplastics:

Everything you need to know to reduce your exposure.

Doulton Water Filters has a range of solutions to reduce microplastics in your water.

Ceramic water filters are amongst the best methods to reduce microplastics in your drinking water. Our filter systems are proven to reduce microplastics, as demonstrated by our NSF test data & certified listings for microplastic filtration.

How do ceramic water filters reduce microplastics?

Our ceramic water filters are made with natural minerals, which form thousands of paths of interconnected microscopic pores through the filter's wall. The paths twist and turn through sharp angles so particles that may have been small enough to pass through the surface pores become trapped within the structure. This means that any particles (like microplastics) that are larger than the external & internal pores will simply get stuck and not pass into your drinking water. Think of the ceramic a little bit like a fine 3D sieve with a convoluted path through the wall.

What Are Microplastics?

Microplastics are exactly what they sound like - tiny pieces of plastic. They are present in our everyday lives in many ways, including through the products we use, the food we eat and the water we drink. One common source of microplastics is clothing made from synthetic materials such as polyester, nylon, and acrylic. When these clothes are washed, very small plastic fibres can break off and enter the wastewater.

macro close up water filter system


Another major source is the breakdown of larger plastic items, such as plastic bags, bottles, and food packaging. Over time, sunlight, wind, and water cause these plastics to break into smaller and smaller pieces, eventually becoming microplastics. Car tyres are also an important source. As vehicles drive on roads, tiny particles from tyre wear are released and can be washed into drains by rain, which may carry them into rivers and lakes. Microplastics can also come from personal care products like face scrubs and toothpastes that once contained small plastic beads. Almost every area of our lives are now touched by plastic, and resulting in greater exposure to microplastics as a result.

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"There is increasing concern for public health over inadvertent human exposure to MPs due to potential adverse health effects linked to MPs polymeric composition, toxic chemical additives, and/or harmful microorganisms adsorbing onto their surfaces. While numerous studies have reported MPs occurrence and risk in the freshwater aquatic environment and drinking water sources (e.g., rivers, lakes, and reservoirs), the current state-of-knowledge on MPs pollution in drinking water (i.e., tap water and bottled water) remains limited at a global level." - Al-Mansoori, M., Stephenson, M., Harrad, S., & Abdallah, M. A. E. (2025). Synthetic Microplastics in UK tap and bottled water; Implications for human exposure.

How Can You Reduce Microplastic Exposure?

Person pouring water from a carafe into a glass next to a kitchen faucet.

There are many, easy changes you can make that will reduce exposure to microplastics. The first, would be around your home, changing anything that is made from plastic (such as chopping boards and microwavable containers) to wood or glass alternatives.

Another change you can make to reduce microplastics in your home is filtering your water. Even though water treatment plants remove many pollutants, they cannot catch every tiny plastic particle. This means some microplastics can pass through the system and end up in rivers, lakes, reservoirs, and eventually the drinking water people use every day.

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Do British Berkefeld Filter Systems Reduce Microplastics?

Throughout 200 years of perfecting the art of ceramic water filters, we have developed a range of solutions to reduce microplastics in your drinking water. British Berkefeld gravity filter systems, such as our 8.5 litre Ultra Sterasyl, are certified to NSF/ANSI Standard 401 for microplastic reduction. The NSF/ANSI Standard test uses millions of particles between 0.5 and 1 micron in size to validate that the British Berkefeld & Doulton ceramic filters achieve more than 99.9% filtration efficiency throughout the test. This means the ceramic microfiltration barrier can effectively trap multi millions of microplastic particles and other suspended contaminants as water slowly passes through the filter. Also further independent testing for the Doulton & British Berkefeld ceramics demonstrates >99.99% filtration efficiency of particles of 0.9 microns and greater and >99.9% efficiency for particles between 0.5-0.8 micron.

Do Doulton Water Filter Systems Reduce Microplastics?

Doulton Water Filter Systems also reduce microplastics, and the Ecofast & HIP systems with Biotect Ultra filters have been independently tested & certified by NSF International to the same stringent test protocol as the British Berkefeld 8.5L Ultra Sterasyl gravity filter systems to validate the filtration of more than 99.9% efficiency of microplastic particles between 0.5 and 1 microns.

Which Water Filter Is Best To Reduce Microplastics?

When it comes to which water filter is best for reducing your exposure to microplastics, you are protected with both the British Berkefeld gravity systems and the Doulton range. Which one you choose will come more down to lifestyle and requirements for use of the system. Those who prefer a portable water filter option with no plumbing and no electricity may opt for the British Berkefeld. Whereas those looking for a more permanent solution in the heart of their home will sway more towards the Doulton under sink systems or tap connected countertop systems. If you would like more advice please reach out to customer services, who will be delighted to help.

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Concerned about other contaminants in your water?

Microplastics is just one of a range of contaminants that can be present in your drinking water. To explore other contaminants, alongside solutions that Doulton Water Filters can offer, please click the button below.

Contaminants Guide