Provenance · the organism in the sachet
Where the yeast comes from
A brewer buys a sachet with a trade name on it. Who selected the organism inside — a brewery, a yeast laboratory, a biotechnology company — is almost never written down anywhere a drinker could find it. These six were traced against public disclosure because somebody was asked and answered.
What this is, and what it is not
This is one distributor's publicly disclosed provenance, not an index of the world's brewing yeast. Lallemand Brewing distributes these strains; the originator named against each one is who selected or developed the organism, which is a different fact from who sells it.
Anything beyond a public technical data sheet is proprietary and is not recorded here. That limit came from the source. Respecting it out loud is why the source is still answering questions — and it is the same reason the archive grades confidence rather than filling gaps with plausible guesses.
Brewery
Verdant IPA
Verdant Brewing Co.
Sourced from the Cornish brewery whose name it carries — a house strain that became a commercial product rather than a laboratory selection.
Yeast laboratory
Pomona
Escarpment Labs
Produced by the Ontario yeast laboratory, one of two strains here that came out of the same partnership.
Yeast laboratory
House Ale
Escarpment Labs
Also produced by Escarpment Labs. A trade name gives no clue to this; the provenance had to be asked for.
Biotechnology company
Sourvisiae
Mascoma
Selected by Mascoma. A lactic-acid-producing strain, which is the sort of organism that arrives from biotechnology rather than from a brewhouse.
Biotechnology company
NovaLager
Renaissance BioSciences
Selected by Renaissance BioSciences, and one of the more consequential recent lager strains.
Biotechnology company
Farmhouse
Renaissance BioSciences
Also selected by Renaissance BioSciences — the second of the pair, again invisible from the packaging.
Known to be incomplete
Some further strains originate with Doemens, the German brewing institute. Which ones is not yet recorded here.
Recorded rather than dropped. A gap somebody can close is worth more than a tidy list that pretends there is no gap.
Strains that stop being sold do not stop having existed
A discontinued yeast disappears from a catalogue the day it is delisted, and with it the record of every beer that was ever made with it. The archive treats a withdrawn strain the way it treats a closed brewery: the record stays. That principle came out of this same conversation, and it is the reason to write any of it down.
The same argument applies to barley and malt, where the archive can currently say far less, and to the 899 breweries on the closed ledger. If you can source a strain's origin, send it.
Provenance supplied by Lallemand Brewing against its own public sources, August 2026. Nothing on this page is sponsored, and no supplier pays to appear in this archive — see the editorial policy.