Matcha glossary for buyers: 21 sourcing, quality and import terms

01 · Tea

Tencha

Tencha is the shaded, steamed and dried leaf material made to be ground into matcha. Unlike sencha, it is dried without rolling and is processed to remove stems and veins before milling. Tencha quality, storage and finishing set the raw material available to the mill. See tencha, shading and first harvest.

02 · Harvest

First harvest / ichibancha

First harvest, or ichibancha, is the first tea picking of the season, typically in late spring. The young leaf is sought for sweetness, umami and color, and its annual quantity is limited. Later harvests are generally more astringent and commonly serve beverage or food grades. Harvest is a specification point, not a complete grade.

03 · Grade

Ceremonial grade

Ceremonial grade is an unregulated commercial term, not an official Japanese quality standard. Suppliers use it for different products and price tiers. Ask for origin, harvest, cultivar or blend, sensory profile, milling and an approved sample instead of treating the label as proof. Read why ceremonial grade has no official definition.

04 · Grade

Culinary or beverage grade

Culinary and beverage grade describe intended use rather than an official grade. These matcha products are usually selected for color, flavor impact and cost in milk, bakery or manufacturing. A good latte matcha may be more assertive than a whisking tea. Approve it in the actual recipe and write the performance into the specification.

05 · Cultivar

Single cultivar

Single-cultivar matcha is made from one named tea variety, such as Okumidori or Samidori. It can offer a distinctive taste and story, but availability may be limited and natural variation remains. It does not necessarily come from one farm or field. Ask what sourcing areas and lots may be combined.

06 · Blend

Blend / gogumi

A blend combines tea lots to reach a target taste, color, volume and cost; gogumi is the Japanese blending practice. Inputs may differ by field, cultivar, harvest or region. Blending is normal in premium and commercial matcha and often improves consistency. See single-cultivar, single-origin or blended matcha.

07 · Origin

Single origin

Single origin means the matcha comes from one defined place, but the size of that place varies. A supplier may mean one field, farm, municipality or region. Ask for the written definition, where the leaf was grown and where it was processed and milled. Verify claims before putting them on packaging.

08 · Lot

Lot / batch

A lot is a defined quantity produced or packed under conditions the supplier can trace as one unit. Its code should appear on bags, the COA and shipping or production records. Lot identity lets a buyer connect results to goods, retain a reference sample and isolate stock if a quality issue occurs.

09 · Spec

Product specification

A specification states the agreed targets and limits for the product. It may cover origin policy, sensory reference, color, particle size, moisture, microbiology, residues, packaging and shelf life. A specification says what should be supplied; a COA records selected test results for a lot. Both are needed for controlled repeat orders.

10 · Testing

COA

COA means certificate of analysis, a report of test results for a product or lot. A useful COA identifies the lot, sample and test dates, laboratory, methods, units, results and detection limits. A generic typical-values sheet is not lot evidence. Use the checklist in how to read a matcha COA.

11 · Residues

MRL

MRL means maximum residue level, the legal maximum for a pesticide residue in a food or commodity. MRLs differ by market and substance, so Japan-compliant tea may not meet an EU, UK, US or Canadian limit. Specify the destination and test panel; see pesticide residues and matcha exports.

12 · Organic

Organic JAS / JAS Bio

Organic JAS is Japan’s regulated organic certification system; “JAS Bio” is wording some European buyers use when referring to it. Certification applies to operators and product scope, not every item a certified company sells. Export organic claims also depend on destination arrangements and documents. See organic certification equivalence.

13 · Document

Radiation certificate

A radiation certificate or test report records results for specified radionuclides, often cesium isotopes, in a sample or lot. Destination requirements have changed over time and differ by market. Ask whether the document is legally required, customer-requested or voluntary, and confirm the lot, method, units, detection limits and current destination rule.

14 · Trade

Incoterms

Incoterms are standard trade terms that divide transport tasks, costs and risk between seller and buyer. EXW leaves most work to the buyer; FCA hands goods to the buyer’s carrier export-cleared; FOB is for vessel shipment; CIF includes ocean freight and insurance; DAP delivers before import clearance; DDP puts import duties on the seller. See Incoterms for matcha.

15 · Orders

MOQ

MOQ means minimum order quantity, the smallest quantity a supplier will accept under stated conditions. Matcha projects can have separate minimums for tea, custom blending, bags, printed packaging and a production run. Ask for each minimum and the price tiers above it. Matcha wholesale MOQ explains the stack.

16 · Branding

Private label, white label and OEM

Private label and white label commonly mean an existing product sold under the buyer’s brand, while OEM usually involves production to the buyer’s brief. Suppliers use the terms differently, so ask whether the tea, blend, pack or artwork is custom. Development, packaging minimums and approvals usually increase from stock product to full OEM.

17 · Milling

Stone mill

A stone mill is a slowly rotating granite mill traditionally used to grind tencha into matcha. Output is low—on the order of tens of grams per mill per hour—and careful operation limits heat. Stone milling suits premium drinking products but is not the only legitimate method for food or beverages.

18 · Milling

Particle size

Particle size describes how fine the powder is and may be reported as a median or distribution in microns. It affects mouthfeel, dispersion, sediment, color perception and cost. Numbers depend on the measurement method, so specify that method as well as the target. See matcha particle size and milling.

19 · Color

L*a*b* color values

L*a*b* is an instrument-based color system: L* describes lightness, a* the green–red axis and b* the blue–yellow axis. Values can make a matcha color target more repeatable, but only when instrument, illuminant and sample preparation are controlled. A retained reference remains useful. See how to specify matcha color.

20 · Freshness

Shelf life

Shelf life is the period in which unopened matcha is expected to remain safe and within stated quality under specified storage conditions. It is not the same as harvest date or milling date. Light, oxygen, moisture and heat reduce color and aroma, so packaging and storage assumptions must accompany the stated period.

21 · Packaging

Nitrogen flushing

Nitrogen flushing replaces much of the oxygen in a package with inert nitrogen before sealing. It slows oxidation but does not make poor packaging or warm storage acceptable. Ask whether the process applies to the proposed bag or finished pack and how seal integrity is checked. Compare formats in bulk matcha packaging options.

22 · Buying

Put terms into the order

Definitions are useful only when they become product-specific. Ask the supplier to turn grade names into a specification, link COAs and certificates to lots, name the destination behind residue limits, and state the Incoterm, MOQ and packaging on the quote. Our matcha procurement service can clarify Japanese supplier language, and you can request a document review.

23 · FAQ

Frequently asked questions

What does ceremonial grade matcha mean?

It means the seller positions the product for drinking, but there is no official definition or universal threshold. Compare the sample, origin, harvest, blend policy, milling and specification rather than the label alone.

What is the difference between a specification and a COA?

A specification states the agreed targets and limits. A COA reports selected test results for a sample or lot. The lot number connects the report to the matcha delivered.

Is private label the same as OEM matcha?

Not always. Private or white label often uses an existing product and standard pack, while OEM can involve a custom blend or finished product. Ask the supplier to define what is being customised and which minimums apply.