Usually they’re paper, but misguided companies have been pushing plastic. I guess some consultants somewhere think the plastic format looks like it should cost

Usually they’re paper, but misguided companies have been pushing plastic. I guess some consultants somewhere think the plastic format looks like it should cost more. Personally, to me the plastic format looks like a hazard, so I avoid it. Some research has found that plastic teabags robustly dose the tea drinker with not only microplastics but also nanoplastics: https://www.bbc.com/news/world-us-canada-49845940 https://www.bbc.com/news/world-us-canada-49845940