Longer Living Guide

Teapigs

Teapigs Peppermint Tea (15 tea temples)

Early researchWhat does this mean? ›
£4.99at Teapigs

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  • Cornstarch (PLA) mesh, not nylon or PET
  • Industrial compost only

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Cornstarch (PLA) mesh, not nylon or PET

Format
Pyramid mesh bags
Compostable
Industrial composting / food waste only (brand)
Bag material
Cornstarch-derived PLA mesh and string, paper label

Where we checked it: teapigs.co.uk ›

Why we picked it

We include Teapigs to explain a common confusion. Its tea temples are made from cornstarch mesh, which is PLA, and Which? classes them as PLA. They avoid nylon and PET mesh, the materials in the 2019 McGill study, but they are still a plastic.

Best for

Whole-leaf flavour if you accept a plant-based plastic mesh

Not for

Anyone aiming for genuinely plastic-free tea

The details that matter.

  • • Cornstarch (PLA) mesh, not nylon or PET
  • • Industrial compost only
  • • Which? classes as PLA
  • • Loose leaf version avoids the mesh
How strong is the research? What our grades mean ›
Strong research
Independent certification or lab data for the specific claim.
Promising research
The material is well supported, but there is no product-level testing.
Early research
Little independent research.
Mixed research
Research findings disagree.
£
Under £20
££
£20 to £79
£££
£80+
How we choose ›

Part of your longer life. Related guides and swaps.

Guide

Plastic-Free Tea Bags UK (2026): Which Brands Really Are, and What PLA Means

Read the guide ›

Sources

  1. teapigs.co.uk
  2. teapigs.co.uk
  3. which.co.uk