A new scientific study has revealed a surprisingly simple way to remove microplastics from drinking water — and it might already be possible using everyday kitchen tools. Researchers say that boiling tap water and then filtering it can significantly reduce microscopic plastic contamination, offering a practical step to lower human exposure.
What the Study Found
Scientists discovered that when water is boiled, naturally occurring minerals such as calcium carbonate begin to form solid deposits, commonly known as limescale. These deposits can trap tiny plastic particles floating in the water. Once the water is boiled and allowed to cool, the trapped microplastics can then be removed through basic filtration or straining.
According to the findings, this method can reduce nano- and microplastics (NMPs) in drinking water by a significant margin, especially in hard water areas where mineral content is higher.
Why Hard Water Makes a Difference
The study highlights an important factor: water mineral content.
-In hard water, which contains more calcium and magnesium, the removal rate of microplastics is much higher.
-In soft water, the effect is weaker, but still measurable.
Researchers found that mineral buildup during boiling plays a key role in capturing plastic particles, making them easier to separate from drinking water.
How the Process Works
The method works in three simple steps:
1. Boil tap water
2. Allow minerals to form solid deposits (limescale)
3. Filter or strain the water to remove trapped particles
This straightforward approach could potentially reduce microplastic intake without requiring expensive filtration systems.
Why This Matters
Microplastics — tiny plastic fragments smaller than 5 millimetres — have been detected in oceans, food, and even human blood. While research is still ongoing, scientists are increasingly concerned about the long-term health effects. Because of this, finding accessible ways to reduce exposure is becoming a global priority.
A Simple but Promising Solution
Experts say the technique is not a complete solution to plastic pollution, but it could be a low-cost, at-home method to reduce daily exposure to microplastics in drinking water. Researchers emphasise that more studies are needed, but the early results are encouraging and show real potential for practical use.
A basic kitchen habit — boiling and filtering water — could help remove a large portion of microplastics, especially in mineral-rich water, making drinking water potentially safer.
Disclaimer: This article is for informational purposes only and is based on findings from a scientific study. It should not be considered medical advice.
