13,701
edits
Changes
update to Philly Sour
| Lallemand Wine || Biodiva™ || ''Torulaspora delbrueckii'' || || || || Marketed as a wine yeast to be used in a sequential pitch with regular wine yeast. Said to increase mouthfeel in wine. Pitch this first until 2° Brix have been fermented, then add wine yeast. See the [https://catalogapp.lallemandwine.com/uploads/yeasts/docs/d441f52d43e8c74d0071debbd7ff415c479e1fdf.pdf Lallemand data sheet] for more information.
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| Lallemand Wine || WildBrew™ Philly Sour || ''Lachancea thermotolerans'' (see the "Fermentation/Other Notes" column for disputed species identification) || || || || ''Lachancea'' selected from nature by University of the Sciences in Philadelphia, PA, USA (Patent pending N° PCT/US20 18/043 148) <ref>[https://www.lallemandbrewing.com/en/united-states/product-details/wildbrew-philly-sour/ WildBrew™ PHILLY SOUR. Lallemand website. Retrieved 07/05/2020.]</ref>. See also [https://www.youtube.com/watch?v=g5OTdRKnNvo this presentation by Dr. Farber] and [https://www.facebook.com/groups/MilkTheFunk/permalink/3557228167638705/ this MTF thread] discussing the patent. See also these [https://www.facebook.com/groups/MilkTheFunk/permalink/3865209566840562/ MTF threads] of note on using this product.
Independent research by Dr. Bryan Heit contradicts some of the manufacturer's information regarding re-pitching. Dr. Heit's data suggest that as long as Philly Sour is re-pitched quickly (the death rate was ~1%/day), it can be re-pitched up to at least 10 generations, and probably re-pitched indefinitely if the correct cell count is pitched. Cell counts should be performed in order to verify that the correct pitching rate of ~0.5-1 million/ml (use this same pitching rate for different gravities of wort) is maintained since pitching under or over this amount produces less pH drop. This culture works better when the wort is well oxygenated and highly fermentable. See this [http://suigenerisbrewing.com/index.php/2021/02/12/diving-deep-in-to-philly-sour blog article by Dr. Heit] and this [https://fb.watch/3Ftevh7G14/ episode of "MTF The Podcast Live"] for more information.
See this [http://html5-player.libsyn.com/embed/episode/id/18140333/height/90/theme/custom/thumbnail/yes/direction/backward/render-playlist/no/custom-color/000000/ The Brü Lab podcast episode] with Dr. Farber. Note that Farber's claim that this is a new species of ''Lachancea'' is disputed by genetic analysis by Dr. Bryan Heit in his blog article [http://suigenerisbrewing.com/index.php/2020/12/08/lachancea-patent-wars/ "The (Not So Great) Lachancea Patent"] and in this episode of [https://fb.watch/3Ftevh7G14/ episode of "MTF The Podcast Live"].
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| [[Mainiacal Yeast]] || Phenolic Funk Warrior || Pichia m, Pichia a, POF+ Saccharomyces cerevisiae x2. || 75-85% ||