Matcha Brands with Public Lab Results

Why these brands qualify

Each brand makes their lab results publicly accessible on their website without requiring a purchase, account creation, or direct request. Public accessibility is verified at the time of last verification.

Useful for

Researchers, journalists, safety advocates, and buyers who want to verify lab results before purchasing without any friction or brand interaction.

Strongest in collection

Teafy — Publishes numeric COA (ppb resolution, named lab, dated)

Why Public Lab Results Matter

A COA shared only on request is fundamentally different from a publicly accessible COA. When results are public, anyone can verify them independently — journalists, researchers, consumer advocates, and competing brands. When results are available only on request, the brand controls who sees them and can selectively share favorable results. Public accessibility is a meaningful transparency signal.

What 'Public' Means in This Context

For this collection, 'public' means the lab results are accessible on the brand's website without requiring a purchase, account creation, email request, or any other friction. The results should be findable by a search engine and accessible to anyone with the URL. Results that require a login or direct request do not qualify.

Numeric Results vs. Summary Statements

A public lab result should include actual numeric values — not just a statement that the product 'passed testing' or 'meets safety standards.' Numeric values allow independent comparison against regulatory limits and against other brands. Summary statements without numbers cannot be independently verified.

Why would a brand not publish lab results publicly?

Brands may not publish results publicly for several reasons: results may be unfavorable, they may not want competitors to see their data, they may use testing as a sales tool (share on request to capture leads), or they may simply not prioritize transparency. The absence of public results is not proof of unsafe products — but it does prevent independent verification.

Are public lab results always accurate?

Public lab results from accredited laboratories are generally reliable, but they represent a specific batch at a specific point in time. Heavy metal levels can vary between batches. A COA from two years ago may not reflect current product. Always check the test date and batch information alongside the numeric results.

What is the difference between a numeric COA and a 'passed testing' statement?

A numeric COA shows actual measured values (e.g., lead: 45 ppb). A 'passed testing' statement only tells you the product met some threshold — without telling you what the threshold was or what the actual measured value was. Numeric results allow independent comparison; summary statements do not.

How do I find a brand's public lab results?

Look for a 'Lab Results,' 'COA,' 'Testing,' or 'Transparency' page on the brand's website. Some brands link to lab results from their product pages. If you can't find results after a reasonable search, the brand likely does not publish them publicly — even if they claim to test.