Teabags contain plastic? Sneaky! Not to mention the plastic film they're often wrapped in to 'seal them for freshness'. Tea is dried leaves. It's not fresh.
ok, rant over.
Most teabags contain small amounts of plastic, creating dangerous microplastic pollution when thrown away. Luckily, some tea companies do sell completely biodegradable teabags, although they are unfortunately often packaged with plastic, I'll link them below. Going for loose leaf tea is the best option, not only because of the lack of plastic but also because you save the trees used to make the teabags. If you're really picky about your cuppa, loose leaf tea strainers give you exact control