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White Labs Yeast - 644 Saccharomyces "Bruxellensis" Trois

White Labs Yeast - 644 Saccharomyces "Bruxellensis" Trois


This strain, used traditionally for wild yeast-like fermentations, produces a slightly tart beer with delicate characteristics of mango and pineapple. Can also be used to produce effervescence when bottle-conditioning. This strain is available in PurePitch, which offers increased cell count due to our ability to concentrate the strain in its new packaging.

(Formerly named Brettanomyces bruxellensis TroisWLP644 is packaged as normal Saccharomyces and the pitch rates are the same as Saccharomyces strains).


Feedback and experiences from previous customers.


By: Andrew | Date: Mar., 23rd 2016 | Beer(s) Brewed: IPA/APA


Just a note to WLP644 users - was very excited about a recent batch, did a maris otter/citra SMaSH with WLP644. Sadly after fermentation the wort was
extremely cloudy, like a Hefe, and barely cleared at all after 3 days in the fridge. I went ahead and bottled anyway, only reading later that 644
is a low flocculator, and that "some strains take 2 weeks at 40F to completely clear." Dang. While I did not control ferm temp very well, and there
could be other factors, next time (and there will be a next time; this yeast smelled absolutely delicious after pitching), I will let it cold crash until
clear or a good approximation thereof.

Just for reference, it tasted and smelled absolutely delicious, but there was substantial yeast bite.


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