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Our Letterbox Tea Sachets Are Biodegradable - Here's Why That's Important


There have been recent reports about some tea sachet bags that may break down just enough to release billions of plastic microparticles when steeped in hot water. The majority of reports identify the common petroleum-based nylon and polyester silky tea bags on the market leach plastics.

We’re happy to share that our Letterbox Fine Tea sachets are made from a plant-based material called Polylactic Acid (PLA). This material is fully biodegradable (in high-heat compost conditions in about 2 months’ time), is not and has never been derived from plastic, is not petroleum-based, and is completely free from any plasticizers, glue, and metals.

We hope this information is helpful. If you are interested in learning more about our sourcing and packaging, please don’t hesitate to get in touch.

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