Bryan Johnson Blueprint vs Marukyu-Koyamaen
A fair, data-driven comparison. All safety data carries source, lab, and date.
Bryan Johnson Blueprint
Marukyu-Koyamaen
Origin
Japan
Uji, Japan
Grade
ceremonial
ceremonial
Price/g
$1.10
$1.13
Transparency tier
Tier 1
Tier 4
Publishes numeric COA
COA published
Organic cert
unspecified
None
Lead (ppb)
98 ppb — Per Blueprint self-published COA, December 2024 (2024-12)
Not disclosed
| Feature | Bryan Johnson Blueprint | Marukyu-Koyamaen |
|---|---|---|
| Origin | Japan | Uji, Japan |
| Grade | ceremonial | ceremonial |
| Price/g | $1.10 | $1.13 |
| Transparency tier | Tier 1 | Tier 4 |
| Publishes numeric COA | ||
| COA published | ||
| Organic cert | unspecified | None |
| Lead (ppb) | 98 ppb — Per Blueprint self-published COA, December 2024 (2024-12) | Not disclosed |
Verdict
Both Bryan Johnson Blueprint and Marukyu-Koyamaen are legitimate matcha options. The key differentiator is transparency: Bryan Johnson Blueprint 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.