Marukyu-Koyamaen vs Kettl
A fair, data-driven comparison. All safety data carries source, lab, and date.
Marukyu-Koyamaen
Kettl
Origin
Uji, Japan
Uji, Yame, Shizuoka, Shiga, Japan
Grade
ceremonial
ceremonial
Price/g
$1.13
$0.90
Transparency tier
Tier 4
Tier 4
Publishes numeric COA
COA published
Organic cert
None
unspecified
Lead (ppb)
Not disclosed
Not disclosed
| Feature | Marukyu-Koyamaen | Kettl |
|---|---|---|
| Origin | Uji, Japan | Uji, Yame, Shizuoka, Shiga, Japan |
| Grade | ceremonial | ceremonial |
| Price/g | $1.13 | $0.90 |
| Transparency tier | Tier 4 | Tier 4 |
| Publishes numeric COA | ||
| COA published | ||
| Organic cert | None | unspecified |
| Lead (ppb) | Not disclosed | Not disclosed |
Verdict
Both Marukyu-Koyamaen and Kettl are legitimate matcha options. The key differentiator is transparency: Kettl publishes a full COA with specific heavy metal values from a named, accredited lab. Neither brand currently publishes a full per-batch COA - we recommend asking both for their latest lab results before purchasing.
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.