JY87 is a Brettanomyces yeast isolated by jasperyeast LLC.  Fast-growing, it has almost Saccharomyces-like doubling times. Shows great fermentation as primary strain in a variety of beers. Ferments fast to 60% attenuation, after which fermentation slows down and more flavor and aroma is produced. Strong pineapple and stonefruit aroma after prolonged fermentations (3-9 months). Great companion to beers that could use some funk, and complements hoppy beers perfectly. Flocculation is low, strain will form a pellicle when oxygen is present. 

Sequencing of ITS regions indicated Brettanomyces bruxellensis

Micrograph of JY87 cells coming soon


Origin:                   West-Flanders, Belgium
Temperature: 16-27ºC (61-80 ºF) 
Attenuation: 75-80% 
Oxygenation: Medium
Flocculation: Low
Styles: Brett Saisons, Brett Beers (wheat, farmhouse, belgians, Brett-IPA)
Alcohol tolerance: Unknown (at least 10%)