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What is a batch report, and how do you read one?

A batch report is a laboratory result for one production run of one product. Every pack carries a lot number, and that number is the key: it ties the pack in your hand to the run it came from and to the report for that run.

A report names the laboratory that ran it, the date, and the method used for each test. For every substance measured it gives two figures: the limit that applies and the amount found. Read the found column against the limit column, never on its own. A result of not detected means the method did not see the substance above its own detection limit, which is not the same as zero.

A document that does not name the laboratory, the lot or the method is a claim rather than a measurement.

How we test each batchChecked September 2026

Transparency

Lab results

Reports are filed here by batch. Find the lot number on your pack, then open the report for that batch.

What a batch is screened on

  • In the panel Identity and alkaloid profileConfirms the material is what the label says and measures how much of the naturally occurring alkaloids it carries. Reported as a percentage by weight, usually by HPLC.
  • In the panel 7-hydroxymitragynineMeasured separately from the main alkaloid because it is the figure most often misstated in this category. A report should give a number and the limit below which the instrument cannot see, not the word pass.
  • In the panel Heavy metalsLead, arsenic, cadmium and mercury, each measured against a stated limit. A report that says pass without giving the four numbers and the limits is telling you nothing.
  • In the panel MicrobiologySalmonella and E. coli, plus total aerobic count, yeast and mold. These are the tests that matter most for a plant material that was dried outdoors.
  • Being added MycotoxinsAflatoxins and ochratoxin A, produced by molds that grow on stored plant material. Screened because drying and storage conditions vary at origin.
  • Being added Pesticide screenA multi-residue panel across the compounds used on crops in the growing region. Reported as detected or below the detection limit, compound by compound.
  • Being added Adulterants and residual solventsChecks that nothing was added to lift the alkaloid figure and that no processing solvent was left behind.

Find your batch

The lot number is printed on the pack, next to the best before date.

No reports published yet.

Reports land here as batches come back from the lab. Until then, send us the lot number from your pack and we send you its report.

Request a report

What a report looks like

No report is published yet, so this is a drawing rather than a scan of one. It shows the shape a report takes and where to look on it: the lot line that ties the paperwork to the pack in your hand, and a row for every substance that names the limit it was measured against and the amount actually found.

Certificate of Analysis Lot SA-0000-000 This ties it to your packTested on DD Month YYYY Laboratory Named on the reportWhat was measured Limit Found Lead 1.0 ppm 0.08 ppm Arsenic 1.5 ppm 0.11 ppm Salmonella Absent in 25 g Not detected Yeast and mold 1,000 cfu/g 60 cfu/g Every result prints the limit it was measured against.
Example layout. Not a real report.

What each term on a report means

Alkaloid profile
How much of the naturally occurring alkaloids the material carries, given as a percentage or in milligrams.
LOD and LOQ
The smallest amount the method can detect, and the smallest it can measure reliably. Anything under those reads as not detected.
Not detected
The substance did not show above the detection limit of that method. Zero is not the same claim.
Method
The technique used, for example HPLC or ICP-MS. Each method has its own limits, so read the result together with it.
Detection limit
The smallest amount the instrument can see. A result of not detected only means anything next to the limit it was measured against, which is why a report should print both.
Scope
Which tests the report actually covers. A report can be genuine and still say nothing about heavy metals if heavy metals were not on the order.
Independent laboratory
A laboratory with no ownership tie to the seller. The report should name it, and the name should be one you can look up.
Retained sample
A sealed portion of the batch kept back so the same material can be re-tested later. Without one, a disputed result cannot be checked.

Five signs of a weak report

Any one of these on its own is reason enough to ask for a better report.

  1. No lot number on the reportA report that does not name the batch it came from cannot be matched to the pack in your hand.
  2. The word pass with no numbersPass against what limit, measured how? A result without a figure and a limit is a claim, not a measurement.
  3. No laboratory namedIf the report does not say who ran it, there is nobody to ask and nothing to verify.
  4. Dates that do not line upA report dated before the batch was made, or years before the pack you are holding, is describing different material.
  5. Microbiology missingFor a dried plant material this is the test that matters most, and it is the one most often left off.

A report covers the batch it names. Always read the label on the pack in your hand.