BlogGuidesBy Hannah Reid4 November 2026

How Do You Reduce Microplastics in Your Tap Water at Home?

To reduce microplastics in your tap water at home, filter the water at the tap through a fine physical barrier, and look for a stated particle size rather than a removal promise with no figures behind it. I recommend the Flowpure stainless steel tap filter, which filters to 0.1 micron, a specification that sits alongside, but is not the same as, a measured microplastics removal percentage, and which suits a household that wants a simple routine at the sink.

What Do We Know About Microplastics In UK Tap Water?

The World Health Organization published a technical report on microplastics in drinking water on 28 August 2019. It reviews the evidence on microplastics in tap and bottled water, assesses potential health impacts, looks at removal during water treatment and identifies the knowledge gaps that stop anyone assessing human health risk with confidence. That report does not establish a concentration for your kitchen tap, so I would not quote a single particles per litre figure for your home.

Opinion: I would resist turning that uncertainty into either alarm or reassurance. When someone says treatment removes almost everything, I would ask which particle sizes were counted and what the method could detect. I would also avoid declaring tap or bottled water the better choice for microplastics without a directly relevant comparison. For a purchase at home, I prefer a clear filtration specification and everyday benefits you can notice over an impressive number that arrives without its method.

Does Boiling Help With Microplastics?

Boiling has relevant laboratory evidence, but it needs its conditions attached. Yu and colleagues, writing in Environmental Science & Technology Letters, found that boiling water with hardness above 120 mg/l as calcium carbonate removed at least 80% of the tested plastic particles from suspension through co precipitation with limescale. That was a result for tested particles under set conditions, not a promise for every kettle, supply or particle size.

The Drinking Water Inspectorate classes water containing 200 to 300 mg/l of calcium carbonate equivalent as hard and water above 300 mg/l as very hard, so the study threshold sits below those bands. Ask your water company for your supply's hardness before applying a hardness dependent finding, and check that the units match. Opinion: I would keep kettle cleaning and drinking water filtration as separate jobs, and I would not rely on boiling alone when a filter works at the tap each time you pour.

Which Home Filter Should You Choose?

Jug and refrigerator filters often use activated carbon and are principally intended to improve taste and smell, according to the CDC, which advises shoppers to check the specific substances listed on the filter label. A 2026 study by Lucarini and colleagues in Water Research X, covering six European household filter jug systems, found marked differences in organic contaminant removal and detected BPA in the filtrate from one device. Neither finding is about microplastics, so a taste claim should never be read as a microplastics claim.

A systematic review by Derakhshani and colleagues found that household reverse osmosis substantially reduced total hardness, total dissolved solids, turbidity and fluoride. That shows what reverse osmosis can do for those measures, but it does not rank it for microplastics, and I would ask for a particle test report before comparing it with ultrafiltration, a dedicated filter tap or an under sink system. I would also ask about purchase and running costs, wastewater, flow and mineral changes. Opinion: I favour filtering at the existing tap, because that is where the household already pours.

What Does The Flowpure Stainless Steel Tap Filter Offer?

The Flowpure stainless steel tap filter has a 304 stainless steel body and comes with five thread adapters. It filters to 0.1 micron, reduces chlorine and unpleasant tastes and odours, and blocks sediment, rust and visible particles. Opinion: that combination gives it a practical everyday purpose without depending on a microplastics percentage that has not been published. Before ordering, check your tap outlet against the fitting instructions and adapters, rather than assuming five adapters suit every kitchen tap.

> Flowpure stainless steel tap filter > > 304 stainless steel body. Five thread adapters. Filters to 0.1 micron. Reduces chlorine and unpleasant tastes and odours; blocks sediment, rust and visible particles. Cartridge limit: about 1,200 litres or up to three months, whichever comes first.

A useful microplastics claim names the tested filter, the particle sizes, the test conditions and the measured result. A 0.1 micron specification is a filtration specification, and it does not by itself establish removal of every nanoplastic, so I would want evidence covering those smaller particles before accepting that claim. Rather than rely on a badge, ask to see the report and check what it measures. That keeps the decision on filtration performance, and away from health promises that the evidence cannot yet support.

How Do You Keep Filtering Practical At Home?

Record the cartridge fitting date on the day you install it, and track both limits: about 1,200 litres or up to three months, whichever comes first. Budget for replacement cartridges alongside the purchase price, and keep the operating instructions somewhere easy to find. A calendar reminder takes a minute and removes the guesswork. Opinion: a written routine is more reliable than waiting for someone in the house to notice a change in the water.

In my opinion, the Flowpure stainless steel tap filter is worth having: its 0.1 micron filtration, chlorine reduction and removal of unpleasant tastes and odours all happen at the tap where you pour. Replace the cartridge at about 1,200 litres or up to three months. Check your tap connection, read the instructions, and put the replacement date in your calendar when you fit the filter.

All articles