Advisory

What variety is this, and can a Geisha claim be checked?

ALS-COFFEE-1.0-VAR-001

This question is worth asking but is not reducible to a check a page can settle. It is published as guidance, not as a test.

Assertion

coffee_variety is_stated true

Applicability

applies when
the page names a coffee variety
signal
a variety name in product text

Accepted evidence

  • product_description — a variety name that resolves in the published varieties catalogue, attributed to this lot, ideally with the producer so the seed source is traceable

Explicitly insufficient evidence

What does not count, and why. Published because the omission is where a check quietly becomes a claim.

  • "Geisha" or "Gesha" with nothing else
    Independent conformity work on plant material found a high rate of misidentification, so the bare name is weak evidence even of good faith.
  • "heirloom" treated as a variety
    It is not a variety; it is an admission that the variety is unidentified, so a check that accepts it credits an absence as a presence.
  • a catalogue link presented as verification
    The catalogue proves the variety exists and describes it; it says nothing about whether this bag contains it, and its own lookup method confirms that.
  • "Gesha-influenced", "Gesha type", "Panamanian-style Geisha"
    Deliberately unfalsifiable hedges that borrow the name's value without making its claim.
  • "Arabica" offered as a variety
    That is a species, not a variety, and it is true of almost all specialty coffee.
  • a competition result for a different lot from the same farm
    A farm's other lots are not this lot, and this is the highest-yield near-miss because the farm genuinely did place.

Conflict rules

  • When the page names a variety and the origin's material is generally unidentified — then record the stated name; saying the variety is not identified is the honest and checkable alternative for such origins

Discrimination

Predicted fail rate: 50-85% (predicted, not yet measured)

Specialty single-origin pages name a variety often and blends and mainstream listings almost never, so a genuine split exists. The band is a hypothesis about seller populations and the assertion could only ever check that a name is stated.

For a shopper

Variety is a real and interesting fact and an unverifiable one from a page: the public catalogue tells you what a variety is, not whether your bag contains it. For the most valuable names, independent work on plant material has found misidentification is common.

For a merchant

Name the variety and the producer so the seed source can be traced, and where the variety is genuinely unknown say so, which is more useful than a catch-all name.

Grounding

  • World Coffee Research varieties catalogue (trade_body)
    that a public reference catalogue of coffee varieties exists with agronomic descriptions, and — by containing no product, brand or lot lookup — that it cannot authenticate a retail claim