evidence: One paper published in 2019 found that, when brewed with boiling water, a single plastic teabag can release approximately 11.6 billion microplastics and 3.1 billion nano-plastics into a single cup of tea. The researchers concluded that the levels of nylon and PET particles released from the teabag packaging were "several orders of magnitude higher" than plastic loads previously reported in other foods. [...] What is known is that tea is far from the sole dietary source of minuscule plastics. Seafood, fruit, vegetables and drinking water have all been linked to microplastic contamination. Even the air you’re breathing now may be contaminated with tiny polymers that have shed from some nearby plastic product.