How to Remove Microplastics from Drinking Water: A Simple Method

Microplastics, tiny particles of plastic less than 5 millimeters in size, are everywhere around us — in the oceans, on city streets, and even in the tap water we drink. They are so small that they are often invisible to the naked eye, and they enter the human body through food and drinking water. Here's how to remove microplastics from water.

Why Are Microplastics Harmful?

When microplastics enter the body, they can have serious health effects. They can accumulate in the intestines, damaging the digestive system's microbiome. They have also been linked to health issues in the lungs and brain. The presence of nano- and microplastics in tap water is a growing concern, and many people turn to expensive water filtration devices to try and remove them. However, there is a much simpler and more affordable method available to everyone: boiling the water.

Boiling Water: A Surprising Solution

Scientists in China have found that boiling water can effectively remove microplastics from tap water. When water is boiled, it causes the formation of calcium carbonate, commonly known as limescale. This mineral creates a crystalline structure that can trap microplastics, capturing these tiny particles in its network. The research shows that after boiling, the microplastics can often become visible in the water and can be removed by filtering the water.

According to the researchers, boiling can remove up to 90% of nano- and microplastics from tap water, even from water sources considered "soft," which have lower calcium carbonate levels than "hard" water. The method proves to be effective regardless of the water type, making it an accessible option for many people worldwide.

To use this method, simply bring your tap water to a rolling boil for a few minutes. As the water cools down, you might notice particles or limescale settling at the bottom or floating in the water. At this stage, you can use a simple kitchen filter or a fine cloth to filter out these particles. This process is a low-cost and efficient way to reduce the number of microplastics in your drinking water.

The primary benefit of this method is its simplicity and affordability. Unlike specialized water filters that can be costly and require regular replacement, boiling water is accessible to nearly everyone. It uses materials you already have at home, requires no special equipment, and is effective for both hard and soft water.

Moreover, boiling water is not only beneficial for removing microplastics but also helps kill bacteria and viruses, providing a dual benefit for those concerned about water quality.