Tea bags leach microplastics: What you need to know
An ordinary cup of tea may hold more than just an aromatic brew. New research conducted by Spanish scientists reveals that popular tea bags can be a source of microplastics in large quantities.
Tea bags offer a quick and convenient option, available everywhere, making them seem like the perfect choice for cold mornings or relaxing after work. But are they really safe? Scientists from the University of Barcelona decided to examine what happens to the tea bag material when it comes into contact with hot water. It turns out that under high temperatures, tea bags release significant amounts of plastic particles into the brew.
This is how boiling water affects tea bags
Whether you choose black, herbal, green, or fruit tea, the bag itself can be the source of the problem. Researchers tested different materials used for tea packaging: nylon, polypropylene, and cellulose. In every case, the release of microplastics was observed. Differences appeared only in the number and size of the particles.
Moreover, these particles were identified in the cells of the intestinal epithelium, especially in the areas where the cells produce mucus. These cells absorbed the most microplastics and nanoplastics, suggesting that the body may readily absorb these pollutants.
Microplastics can affect the whole body
Although the effects of microplastics in the body are still being studied, it is already known that they can negatively impact humans, affecting hormonal, immune, and even reproductive systems. The particles can move throughout the body and impact cell functioning, making the tea bag a potential source of danger. If you want to reduce contact with plastic, consider drinking loose-leaf tea and brewing it in a stainless steel infuser.
