Steady Matcha

Midori Spring

Japan · ceremonial grade · $0.60/g

3rd-party testedCOA publishedUSDA organic

Midori Spring publishes results at ppm resolution (0.135-0.207 ppm lead range stated). Note: ppm is approximately 1,000x coarser than ppb. A ppm-resolution result cannot rule out lower-level contamination that ppb testing would detect.

Heavy metal test results

All data sourced from published COAs or third-party testing. Source, lab, and date shown for every value.

Cadmium (Cd)

Below limit per Midori Spring published results

Arsenic (As)

Below limit per Midori Spring published results

Mercury (Hg)

Below limit per Midori Spring published results

MetalValueSourceDate
Lead (Pb)0.135 ppmEurofins Japan, per Midori Spring published results (ppm resolution) 2025-01-01
Cadmium (Cd)Below limit per Midori Spring published results——
Arsenic (As)Below limit per Midori Spring published results——
Mercury (Hg)Below limit per Midori Spring published results——

Data attribution: values presented as reported by the named source. Steady Matcha does not conduct or claim ownership of third-party test results.

Pros and cons

Pros

  • USDA and JAS organic
  • Publishes some numbers
  • Eurofins lab

Cons

  • ppm resolution only (approximately 1,000x coarser than ppb)
  • Cannot rule out lower-level contamination

Where to buy

← All brandsLab-tested brands →Lead in matcha guide →

Quick facts

OriginJapan
Gradeceremonial
Price$0.60/g
OrganicUSDA
3rd-party testedYes
COA publishedYes
Pesticide testedYes

Last verified: June 21, 2026