Many tea bags contain a thermoplastic such as polypropylene (PP, the recyclable plastic coded “5”) or plant-based polylactic acid (PLA, “7”).
Plastic Tea Bags: Shocking News or Nothing to Worry About? - Tea Journey
Is there plastic in your tea bag? - Consumer NZ
Plastic Free Tea Bags: Which Brands are really Plastic Free?
The brands that could be 'greenwashing' you
NZ Home 3XL Insulated Cooler Bag and Food Warmer for Food Delivery & Grocery Shopping with Zippered Top, Black (1 Pack) : Industrial & Scientific
Steep Sacks Enjoy a cup of delicious loose leaf tea, even if you're caught without a basket-style infuser. These individual filters are made from unbleached paper, designed for use with full-leaf tea. Makes brewing full-leaf tea and herbs as easy as using a traditional tea bag. Use these Steep Sacks in both cups and teapots for a delightful and flavorful sip.
Republic Of Tea Paper Filters, Steep Sacks, Unbleached - 100 filters
Plastic Free Tea Bags: Which Brands are really Plastic Free?
Plastic in Tea Bags: What You Need to Know
Microplastics: Premium teabags leak billions of particles - study