HEALTH THREAT

Each cup of your favourite tea may contain billions of microplastic and nano plastic particles, potentially posing risks to your health. Discover the impact of these hidden contaminants and explore effective ways to minimise your exposure.

- Dr. T. Abeyagunasekera

Microplastic pollution has become a widespread environmental and health concern, with recent estimates indicating that individuals consume between 39,000 and 52,000 microplastic particles annually, depending on factors such as age and sex.

These minute plastic fragments, typically ranging in size from 1 mm to 5 mm, have been detected in various environmental settings and are increasingly contaminating food and beverages, including commonly consumed products like tea.

Additionally, nanoparticle contamination is prevalent in bottled water. A recent study reported that, on average, each bottle of water contains approximately 240,000 plastic nanoparticles, raising significant health concerns regarding prolonged exposure.

Research published in Environmental Science & Technology has highlighted the presence of both microplastics and nanoplastics in tea bags. The study revealed that a single plastic-based tea bag, when exposed to standard brewing temperatures, can release an estimated 11.6 billion micro plastic particles and 3.1 billion nanoplastic particles into a single cup of tea. These findings underscore the urgent need for further investigation into the potential health implications of plastic contamination in consumable products.

Tea is one of the most widely consumed beverages globally, valued for its potential health benefits and therapeutic properties. However, many consumers may be unaware that a significant proportion of tea bags contain plastic-based materials rather than being entirely biodegradable. In the United Kingdom, approximately 96% of tea is sold in tea bags. Studies analyzing various commercial tea brands have found that many tea bags contain polypropylene as a structural component, while some are composed almost entirely of nylon.