Most Bigelow tea bags are not fully compostable because they contain plastic

Bigelow tea bags contain a heat-sealed plastic mesh or netting that holds the tea leaves together. This plastic does not break down in a home compost bin or even in industrial composting facilities. While the tea leaves and paper portions of the bag will decompose, the plastic component will remain intact and contaminate your finished compost.

Bigelow has not switched to fully compostable tea bags across their product line. Some specialty lines may use different materials, but the standard bags you find in grocery stores contain this plastic element. If you want to compost Bigelow tea, you need to remove the tea leaves from the bag first.

Key Takeaways

  • Bigelow tea bags contain plastic mesh that will not decompose in home or industrial compost.
  • The tea leaves themselves are compostable, but you must separate them from the bag to compost them.
  • Removing the tea from the bag takes about 30 seconds per bag and produces loose leaf material ready for your compost bin.
  • If you prefer not to separate tea from bags, loose leaf tea or brands with certified compostable bags are alternatives worth considering.

How to remove tea from Bigelow bags for composting

Open the tea bag by tearing along the sealed edge or carefully cutting it with scissors. Pour the loose tea leaves directly into your compost bin. The paper exterior of the bag can go in the compost as well, since paper breaks down readily. Discard only the plastic mesh portion in the trash.

This process takes about 30 seconds per bag. If you brew multiple cups daily, you might batch this task—save your used bags in a small container and empty them all at once. The wet tea leaves will decompose faster than dry ones, so composting them right after brewing works well.

What happens if you compost a whole Bigelow tea bag

If you accidentally compost an intact Bigelow tea bag, the plastic mesh will sit in your pile for months or years without breaking down. When you use the finished compost in your garden or potted plants, small pieces of plastic may end up in the soil. Over time, these fragments accumulate and can harm soil structure and potentially be ingested by earthworms and other organisms that live in the soil.

The plastic pieces are small enough that you might not notice them when ready, but they persist. If you discover whole tea bags in a compost pile that has already finished, you can sift them out before using the compost, though this is tedious. Prevention—removing the tea from the bag before composting—is simpler than cleanup.

Checking the label for material information

The Bigelow website and product packaging do not advertise the tea bags as compostable. If you see a compostable certification logo on a Bigelow box (such as the Biodegradable Products Institute seal or similar), that refers only to the paper and tea components, not the entire bag. Read the fine print on the box or check their website before assuming any Bigelow product is fully compostable.

Bigelow does make a line of organic teas, but organic certification does not mean the bags are compostable. The material composition is what matters for composting, not whether the tea leaves are grown organically. Always look for explicit language about compostable bags or a third-party certification if that is important to your purchasing decision.

Alternatives if you want compostable tea bags

Several tea brands now offer bags made from plant-based materials like corn starch or abaca fiber that break down in both home and industrial compost. Brands such as Pukka, Traditional Medicinals, and some lines from Celestial Seasonings use these materials. These bags will decompose alongside your tea leaves and paper, leaving no plastic residue behind.

Loose leaf tea is another option that eliminates the bag question entirely. You brew it in a strainer or infuser, and the spent leaves go straight into the compost. Loose leaf tea often costs less per cup than bagged tea and gives you more control over brewing strength. If you already own an infuser, switching to loose leaf requires no additional equipment.

How long Bigelow tea leaves take to compost

Once removed from the bag, Bigelow tea leaves will decompose in a standard home compost pile within 2 to 6 months, depending on temperature, moisture, and how often you turn the pile. In a hot compost system (above 130°F), they break down faster. In a cold pile that you rarely turn, decomposition takes longer.

The paper exterior of the tea bag also decomposes within this timeframe. Both materials are nitrogen-rich, so they contribute to the nutrient content of your finished compost. Wet tea leaves decompose faster than dry ones, so composting them when ready after brewing speeds up the process.

Frequently Asked Questions

Can I compost Bigelow tea bags if I have an industrial compost facility nearby?

No. Industrial composting facilities reach higher temperatures than home compost, but they still cannot break down the plastic mesh in Bigelow bags. Remove the tea from the bag before composting, even if you have access to industrial composting. The plastic will not decompose in either setting.

Is the string attached to Bigelow tea bags compostable?

The string is usually cotton or a similar plant fiber and will decompose in compost. However, the staple that attaches the string to the bag is metal and should be removed. Pull the string and staple away from the bag before opening it, then discard the staple in the trash and compost the string with the tea leaves.

What if I compost just the tea leaves and throw away the whole bag?

That works, but it wastes the paper portion of the bag, which is compostable. If you open the bag and separate the contents, you can compost both the tea leaves and the paper exterior. Only the plastic mesh needs to go in the trash. Separating takes minimal effort and reduces waste.

Do all Bigelow tea products have plastic bags?

The standard Bigelow tea bags sold in most grocery stores contain plastic mesh. Bigelow has not published a complete list of which products use different materials, so check the packaging or contact their customer service if you are considering a specific product line. When in doubt, assume the bag contains plastic and remove the tea before composting.