A Canadian study found that a single tea bag releases 14.6 billion micro-plastics and 3.1 nanoplastics into the water.
If we do not want to run the risk of ingesting micro-plastic particles, we must be very careful about the packs we buy.
The alert comes from a study founded by McGill University in Montreal, according to which nylon and polyethylene terephthalate tea bags (pyramid tea bags) are not compostable. In contact with hot water they release billions of micro and nano-plastics.
That’s certainly not good for your health!
How was the search?
The research was made taking into consideration 4 types of sachets on the market, removing the tea inside them and cleaning well from any remaining residue.
They were then dipped in water at 95°C and analysed what was released.
They discovered that an average of 11.6 billion microparticles were dispersed in the volume equivalent to a cup. That is to say, particles with a diameter of more than 100 nanometres, and 3.1 billion nanoparticles with a diameter of less than 100 nanometres.
The experts were able to state with certainty that: the packet with the release of plastic particles faithfully matched the packet made with nylon and polyethylene terephthalate filters.
What effect can all this have on our health?
A lot depends on the quantity and frequency with which tea and infusions contained in plastic filters are consumed.
In conclusion, it’s better to go back to tea and herbal teas with paper filters, which is also recyclable, or to those in bulk.