A single plastic tea bag can release billions of microplastics into your cup of tea.

This new find raises serious concerns about the potential health risks associated with this pervasive form of pollution.

Researchers from the Autonomous University of Barcelona in Spain used cutting-edge laser techniques to analyze three different types of tea bags and found that those made primarily from polypropylene released the highest number of particles, followed by cellulose and nylon-6 bags.

Previous research explored the interaction of plastics and high heat, such as in microwaved food containers, revealing the widespread presence of micro and nanoplastics in our daily lives. The study also investigated how these micro and nanoplastics interact with human intestinal cells, discovering that they can be absorbed and even reach the cell nucleus, particularly in mucus-producing cells.

This raises concerns as microplastics have been linked to various health issues, including interference with normal cell function, increased risk of infections, and inflammatory bowel disease. The polymer composition of microplastics plays a role in their biological interactions, influencing their absorption, distribution, and potential toxicity within the body.

To minimize exposure to microplastics from tea bags, consumers can take several proactive steps. Choosing loose-leaf tea is the most effective way to avoid plastic entirely. Alternatively, seek out tea bags made from natural, plant-based materials that are plastic-free and biodegradable. When steeping tea, using filtered water can further reduce plastic contamination.