Aoi Seicha vs Supramatcha Matcha: 2026 Comparison
Aoi Seicha and Supramatcha both source their matcha from Uji, Japan, making origin a neutral factor in this 2026 comparison.
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 Aoi Seicha has a published price ($0.83/g). Cannot compare.
Testing transparency
Tie / indeterminate
Both brands are rated Unrated. Equivalent disclosure level.
Published lead level
Tie / indeterminate
Neither brand has published a numeric lead value. Cannot compare.
Origin
Tie / indeterminate
Both brands source from Uji. Same origin region.
Organic certification
Aoi Seicha
Aoi Seicha holds ORGANIC certification. Supramatcha does not have a publicly confirmed organic certification.
Side-by-Side Spec Table
| Field | Aoi Seicha | Supramatcha |
|---|---|---|
| Origin | Uji, Japan | Uji, Japan |
| Grade | Premium | Premium |
| Price per gram | $0.83/g | Not available |
| Transparency tier | -- | -- |
| Publishes numeric COA | No | No |
| Third-party tested | No | No |
| Organic certification | ORGANIC | None |
| Lead (published) | Not publicly published (checked June 27, 2026) | Not publicly published (checked date unknown) |
| Cadmium (published) | Not publicly published (checked June 27, 2026) | Not publicly published (checked date unknown) |
| Arsenic (published) | Not publicly published (checked June 27, 2026) | Not publicly published (checked date unknown) |
| Mercury (published) | Not publicly published (checked June 27, 2026) | Not publicly published (checked date unknown) |
| Pesticide tested | No | No |
| Last verified | June 27, 2026 | date unknown |
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 Aoi Seicha nor Supramatcha has published numeric heavy metal values as of the last verification dates (June 27, 2026 and date unknown respectively). Without published ppb values, independent verification is not possible.
| Metal | Aoi Seicha | Supramatcha |
|---|---|---|
| Lead | Not publicly published (checked June 27, 2026) | Not publicly published (checked date unknown) |
| Cadmium | Not publicly published (checked June 27, 2026) | Not publicly published (checked date unknown) |
| Arsenic | Not publicly published (checked June 27, 2026) | Not publicly published (checked date unknown) |
| Mercury | Not publicly published (checked June 27, 2026) | Not publicly published (checked date unknown) |
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: Aoi Seicha June 27, 2026, Supramatcha date unknown.
Price Comparison
Supramatcha does not have a published price per gram. Aoi Seicha is priced at $0.83/g (as of 2026-06-27).
Detailed Analysis
Testing Transparency
No public testing statement has been found for Aoi Seicha as of the last verification date. No public testing statement has been found for Supramatcha as of the last verification date.
Origin and Sourcing
Both Aoi Seicha and Supramatcha source their leaf from Uji. Origin is a neutral factor in this comparison. Flavor and quality differences, if any, are more likely to reflect grade, harvest timing, and processing than regional terroir.
Which Should You Buy?
Both brands are at the same transparency tier (Unrated). Testing disclosure is not a differentiator between them. If organic certification matters to you: Aoi Seicha holds ORGANIC certification. Supramatcha does not have a publicly confirmed organic certification.
Frequently Asked Questions
What is the price of Aoi Seicha vs Supramatcha?
Aoi Seicha is priced at $0.83/g. Supramatcha does not have a published price per gram available.
Does Aoi Seicha publish lab results?
No public testing statement or COA has been found for Aoi Seicha as of June 27, 2026.
Does Supramatcha publish lab results?
No public testing statement or COA has been found for Supramatcha as of date unknown.
Is Aoi Seicha or Supramatcha organic?
Aoi Seicha holds ORGANIC certification. Supramatcha 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.