Many tea drinkers want to know if Bigelow tea bags are plastic-free because plastic can fragment into microplastics and persist in the environment. This concern is more than environmental; it affects composting and personal health choices.
Understanding exactly what Bigelow uses in their tea bags helps you decide if they fit your lifestyle and values, especially if you compost or avoid plastic exposure.
Bigelow Tea Bags and Plastic Content
Bigelow tea bags are mostly plastic-free, made from plant-based materials without polypropylene plastic. They contain no plastic heat sealing and are crafted from abaca hemp fiber and wood pulp.

These tea bags use a steel staple and a corn-based adhesive to hold their shape and seal, which are not plastic but do affect composting. Unlike many brands, Bigelow avoids plastic films that can release microplastics during brewing.
Plastic-free here means the bag’s fiber components won’t shed microplastic particles into your cup. However, the steel staple remains, so the bag isn’t fully plastic-free in the strictest sense. That staple also means the bag won’t fully compost without preparation.
Bigelow tea bags are oxygen-bleached without chlorine, which is a gentler process for the environment and your drink. No plastic heat sealing is used, so the bags rely on staples and a plant-derived adhesive for closure.
| Material | Plastic Content | Compostability Impact |
|---|---|---|
| Abaca hemp fiber and wood pulp | None | Compostable fiber |
| Steel staple | No plastic | Must remove for composting |
| Corn-based adhesive | No plastic | Composts in industrial facilities |
Staples, Adhesives, and Composting Bigelow Tea Bags
Bigelow tea bags are not fully compostable at home because their steel staples do not break down and must be removed before composting. These metal pieces can contaminate compost and harm soil health if left in.

The corn-based adhesive holding the bag closed is plant-derived and composts well in industrial facilities, but it breaks down more slowly in home compost bins. This means your kitchen compost may take months to fully decompose the bag.
To properly compost Bigelow tea bags, remove the steel staple first. Then add the bags to your compost bin along with a balance of green materials (like food scraps) and brown materials (like dry leaves) to maintain moisture and aeration.
Industrial composting facilities provide the heat and controlled conditions needed to break down the corn-based adhesive and bag fibers faster and more reliably than home setups.
Bigelow Compared to Other Plastic-Free Tea Brands
Bigelow tea bags are mostly plastic-free and made from plant-based fibers without polypropylene. They use steel staples and a corn-based adhesive, which means they are not fully compostable at home. You might wonder about microplastics in Bigelow tea bags. Since they avoid plastic heat seals, the risk of microplastic shedding is lower than with many brands that use plastic lining or sealing.
Some plastic-free tea brands do better on compostability and convenience. Numi tea bags, for example, use a heat-sealing method without staples. Their bags are made entirely from natural fibers and are fully compostable at home. This means you can toss the whole bag into your compost bin without removing anything.
Traditional Medicinals and Yogi Tea also offer mostly plant-based bags. However, their sealing methods differ: some use staples, others use plastic heat seals. Plastic heat seals inside the bag mean small plastic fragments remain, which reduces compostability and adds microplastic risk. Those with staples require you remove the metal before composting, just like with Bigelow.
| Brand | Bag Material | Sealing Method | Compostable at Home |
|---|---|---|---|
| Bigelow | Plant-based fibers | Steel staples and corn adhesive | No, staples must be removed |
| Numi | Plant-based fibers | Heat sealed, no staples | Yes |
| Traditional Medicinals | Plant-based fibers | Staples or heat seal, varies | No, staples or plastic present |
| Yogi Tea | Plant-based fibers | Staples or plastic heat seal | No, depends on bag type |
How to Identify and Choose Truly Plastic-Free and Compostable Tea Bags
If you want to avoid plastic in your tea bags, start by looking for clear labels such as “plastic-free,” “100% plant-based,” or “home compostable.” These terms mean the manufacturer has designed the bag to break down naturally without plastic residues. Avoid vague claims like “eco-friendly” unless they specify what makes the product sustainable.
Check the bag material listed on the package. Materials like abaca, cotton, and unbleached paper are good signs of plastic-free content. Avoid bags with plastic heat seals, which often contain polyethylene or polypropylene inside the bag fabric, even if the outside looks like paper.
Loose leaf tea with a reusable strainer or infuser is the most sustainable choice. It avoids disposable bags altogether and lets you control how much tea you brew without added waste.
Bigelow’s Environmental Approach Beyond Tea Bags
Bigelow tea bags are safe for brewing and do not release microplastics because they avoid polypropylene plastic, using plant-based fibers instead.
Beyond the tea bag itself, Bigelow reduces environmental impact by choosing plant-based materials and chlorine-free bleaching methods, which cut down on harmful chemicals in manufacturing.
The company emphasizes sustainable sourcing of tea leaves, works to reduce packaging waste, and invests in energy conservation at its facilities to lower its carbon footprint.
Bigelow also partners with ethical farmers who use responsible practices, supporting environmental and social sustainability in tea-growing regions.
Choosing Bigelow supports a company moving toward greater environmental responsibility, but if compostability is your top priority, you might want to weigh this factor when selecting tea bags.
Understanding these environmental practices helps you align your tea choices with your values, balancing convenience, taste, and sustainability.
If avoiding plastic in your tea bags matters to you, Bigelow’s mostly plastic-free approach is a solid step, even as the company continues to improve its products and policies.

