Midori Spring vs Kettl
A fair, data-driven comparison. All safety data carries source, lab, and date.
Midori Spring
Kettl
Origin
Japan
Uji, Yame, Shizuoka, Shiga, Japan
Grade
ceremonial
ceremonial
Price/g
$0.60
$0.90
Transparency tier
Tier 2
Tier 4
Publishes numeric COA
COA published
Organic cert
USDA
unspecified
Lead (ppb)
0.135 ppm — Eurofins Japan, per Midori Spring published results (2025-01)
Not disclosed
| Feature | Midori Spring | Kettl |
|---|---|---|
| Origin | Japan | Uji, Yame, Shizuoka, Shiga, Japan |
| Grade | ceremonial | ceremonial |
| Price/g | $0.60 | $0.90 |
| Transparency tier | Tier 2 | Tier 4 |
| Publishes numeric COA | ||
| COA published | ||
| Organic cert | USDA | unspecified |
| Lead (ppb) | 0.135 ppm — Eurofins Japan, per Midori Spring published results (2025-01) | Not disclosed |
Verdict
Both Midori Spring and Kettl are legitimate matcha options. The key differentiator is transparency: Midori Spring publishes a full COA with specific heavy metal values from a named, accredited lab.
All data in this comparison is sourced from publicly available COAs and third-party testing. Steady Matcha does not conduct or claim ownership of third-party test results for other brands.