Pesticide residues are the compliance issue that most often derails a matcha import at the last minute. The reason is structural: every market sets its own maximum residue levels (MRLs), and tea grown perfectly legally under Japan’s rules can contain a residue that is above the limit, or has no specific limit, in the destination country.
This note is a buyer’s overview, not regulatory advice. Confirm current limits with your importer, laboratory or authority.
01 · Why limits differ
Why limits differ between markets
- Japan operates a positive list system: substances have specific MRLs for tea, and unlisted ones default to a uniform low limit. Some agricultural chemicals used on tea in Japan have Japanese MRLs that are higher than the limits set elsewhere.
- The EU and UK set MRLs per substance for tea; where no specific value exists, a low default applies. Several substances used in Japan have EU limits at or near the default.
- The US sets tolerances per substance and crop; a substance without a tolerance for tea is generally not permitted at any level.
- Canada, Australia, and others each have their own lists.
The practical result: a residue level acceptable in Japan may exceed the limit in the EU or lack a tolerance in the US. Matcha is consumed whole, as powder, which is one reason regulators and buyers pay attention.
02 · What it means
What this means for sourcing
Producers who already export to strict markets manage their spraying programmes and field selection to meet those limits, and can show test histories. Producers who sell only domestically may use compliant-in-Japan practices that fail elsewhere. Supplier selection is therefore the first control:
- Ask whether the supplier currently exports to your market and can show recent multi-residue results
- Ask whether specific fields or lots are managed for export markets
- Ask which laboratory and screening panel they use, and how many compounds it covers
- Consider organic-certified lots where residues are a recurring problem; see organic matcha certification and equivalence
03 · Testing
Specify testing against the destination
| Step | What to agree |
|---|---|
| Panel | A multi-residue screen relevant to tea, plus any substances your market watches closely |
| Limits | The destination market’s MRLs, listed in the specification |
| Frequency | Per lot for new suppliers or strict markets; periodic once history is established |
| Laboratory | External accredited lab for the reports you rely on |
| Timing | Pre-shipment on the production lot, so a failure is caught in Japan |
| Report | Lot-numbered, with detection limits stated; see how to read a matcha COA |
A residue failure discovered on arrival costs freight, duty, storage and often the whole lot. Testing the production lot in Japan turns that into a supplier conversation instead.
04 · Organic
Organic is not the same as residue-free
Organic certification restricts inputs and requires audits, which usually results in low residue findings, but it is a process claim, not a test result. Buyers who need residue assurance still test. Conversely, conventional lots from well-managed export-oriented fields can pass strict MRLs comfortably.
05 · Documents
Documents your importer will want
- Multi-residue report for the lot with LOQs and the limits applied
- Specification listing the destination market’s limits
- Supplier statement on cultivation practices and field selection
- Traceability to producer and field, so results can be tied to a source
06 · Support
Handling residues on the Japan side
Residue conversations with producers are technical and best held in Japanese. Our quality and documentation service identifies suppliers with suitable histories for your market, agrees test panels and coordinates lot testing before shipment.
07 · FAQ
Frequently asked questions
Why can Japanese matcha fail EU residue limits?
Because MRLs are set per market. A substance permitted for tea in Japan may have a lower limit, or only the default limit, in the EU, so a lot that is fully compliant in Japan can exceed the EU limit.
Does organic certification guarantee no residues?
No. Organic is a process certification that restricts inputs and usually results in low findings, but it is not a test result. Buyers who need residue assurance still test lots against destination limits.
When should residue testing be done?
On the production lot before shipment, in an accredited laboratory, against the destination market’s limits. A failure caught in Japan is a supplier conversation; a failure on arrival is a lost shipment.
Japan-side support
Exporting matcha to a strict market?
Tell us the destination and product. We identify suppliers in Japan with suitable residue results, agree the test panel and coordinate lot testing before shipment.
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