The numbers come from the lab, not from us.
Every Nutroko test is run by a third party: SUNATEC (Food Analysis Technology Center, Yokkaichi, Japan). The sample is Batch 001's matcha base powder. Here is what was tested in July and August 2026, and where each item stands.
We will publish the certificate values on this page before Batch 001 ships: we would rather show you the certificate than a guess. English-language certificates are being issued as well.
Production runs in a GMP-certified facility. We test every batch, not just this first one, and our end goal is NSF certification, the global gold standard.
Laboratory: SUNATEC (Food Analysis Technology Center, Yokkaichi, Mie, Japan). For a copy of any certificate, email us.