By far the most sustainable way to drink tea is without single-serve packaging. Zero waste loose leaf tea is the most eco-friendly tea solution. Added to saving precious resources - think of the forests destroyed to make paper teabags and the acres of mono-crop corn used to make "silken" bags - loose leaf tea is plastic-free. No nano plastics will find their way into your teacup or you.
I’m sure you’ve read about the invisible plastic mesh hidden inside paper teabags, but they can also be found in the solvents and glues used to seal bags. It's hard to know what you’re putting in your cup without a lab to analyse it.
When you choose sustainable loose leaf tea you are also choosing plastic-free loose leaf tea. Better for the planet and better for you.