Duo Matcha vs Marukyu-Koyamaen Matcha: 2026 Comparison
This 2026 comparison covers Duo Matcha and Marukyu-Koyamaen across price, testing transparency, heavy metal disclosure, and organic certification.
Verdict by Axis
No single overall winner is declared. The better choice depends on which axis matters most to you.
Price per gram
Tie / indeterminate
Only Marukyu-Koyamaen has a published price ($1.13/g). Cannot compare.
Testing transparency
Marukyu-Koyamaen
Marukyu-Koyamaen is Tier 4 vs Unrated for Duo Matcha. Lower tier number means more disclosure.
Published lead level
Tie / indeterminate
Neither brand has published a numeric lead value. Cannot compare.
Origin
Tie / indeterminate
One or both brands have not publicly disclosed their leaf origin region.
Organic certification
Tie / indeterminate
Neither brand has a publicly confirmed organic certification.
Side-by-Side Spec Table
| Field | Duo Matcha | Marukyu-Koyamaen |
|---|---|---|
| Origin | Not disclosed | Uji, Japan |
| Grade | Not specified | Ceremonial |
| Price per gram | Not available | $1.13/g |
| Transparency tier | -- | Tier 4 |
| Publishes numeric COA | No | No |
| Third-party tested | No | No |
| Organic certification | None | None |
| Lead (published) | Not publicly published (checked date unknown) | Not publicly published (checked June 24, 2026) |
| Cadmium (published) | Not publicly published (checked date unknown) | Not publicly published (checked June 24, 2026) |
| Arsenic (published) | Not publicly published (checked date unknown) | Not publicly published (checked June 24, 2026) |
| Mercury (published) | Not publicly published (checked date unknown) | Not publicly published (checked June 24, 2026) |
| Pesticide tested | No | No |
| Last verified | date unknown | June 24, 2026 |
Origin
Grade
Price per gram
Transparency tier
Publishes numeric COA
Third-party tested
Organic certification
Lead (published)
Cadmium (published)
Arsenic (published)
Mercury (published)
Pesticide tested
Last verified
Heavy Metals and Safety Disclosure
Neither Duo Matcha nor Marukyu-Koyamaen has published numeric heavy metal values as of the last verification dates (date unknown and June 24, 2026 respectively). Without published ppb values, independent verification is not possible.
| Metal | Duo Matcha | Marukyu-Koyamaen |
|---|---|---|
| Lead | Not publicly published (checked date unknown) | Not publicly published (checked June 24, 2026) |
| Cadmium | Not publicly published (checked date unknown) | Not publicly published (checked June 24, 2026) |
| Arsenic | Not publicly published (checked date unknown) | Not publicly published (checked June 24, 2026) |
| Mercury | Not publicly published (checked date unknown) | Not publicly published (checked June 24, 2026) |
Source: brand-published COAs and independent test results. Values are from specific batches and dates. Absence of published data does not indicate safety or danger. Last verified: Duo Matcha date unknown, Marukyu-Koyamaen June 24, 2026.
Price Comparison
Duo Matcha does not have a published price per gram. Marukyu-Koyamaen is priced at $1.13/g (as of 2026-06).
Detailed Analysis
Testing Transparency
No public testing statement has been found for Duo Matcha as of the last verification date. No public testing statement has been found for Marukyu-Koyamaen as of the last verification date.
Origin and Sourcing
Marukyu-Koyamaen sources from Uji, Japan. Duo Matcha has not publicly disclosed a specific leaf origin region. Origin cannot be fully compared.
Which Should You Buy?
If testing transparency is your priority: Marukyu-Koyamaen (Tier 4) discloses more than Duo Matcha (Unrated).
Frequently Asked Questions
What is the price of Duo Matcha vs Marukyu-Koyamaen?
Marukyu-Koyamaen is priced at $1.13/g. Duo Matcha does not have a published price per gram available.
Does Duo Matcha publish lab results?
No public testing statement or COA has been found for Duo Matcha as of date unknown.
Does Marukyu-Koyamaen publish lab results?
No public testing statement or COA has been found for Marukyu-Koyamaen as of June 24, 2026.
Is Duo Matcha or Marukyu-Koyamaen organic?
Marukyu-Koyamaen holds None certification. Duo Matcha does not have a publicly confirmed organic certification as of the last verification date.
Related comparisons
All data in this comparison is sourced from publicly available COAs, brand websites, and independent test results. Every safety data point carries its source and last-verified date. Steady Matcha does not conduct or claim ownership of third-party test results for other brands. Brand information changes: verify current status before purchasing.