Angel VOS Ale Yeast

VOS is one of the most prominent and popular strains of Kveik which comes from Voss region in Norway with a wide fermentation temperature range. The fermentation can complete around 2-3 days at high temperature (30-35° C) with a clean finish and crisp flavor rather than weeks, which saves time and money. VOS shows a medium-high attenuation and a good alcohol tolerance (up to 12%ABV). The aroma profile of beer fermented by VOS is relatively clean with orange and citrus flavor. VOS is recommended for brewing West Coast IPA, American pale ales, Blonde ales and Barleywine.

Temperature range: 20-35 °C
Apparent attenuation: 75-82% 
Alcohol tolerance: 12-14% (v/v)
POF phenotype: Negative 
Diastaticus: Negative 
Flocculation: Medium to high
Fermentation rate: High
Biotransformation: Low

USAGE 

Dosage:

50 to 100 g/hl, increasing yeast dosage under difficult fermentation conditions and high gravity. 

Rehydration method:

•    Rehydrate the yeast in 10 times its weight of clean boiled water at 25-30° C. in a sterile container.
•    Ensure all the yeast contact with water, leave it for 15 minutes and then gently stir to suspend yeast completely and rehydrate fully. Leave it for another 5 minutes at 25-30° C.
•    The rehydration process does not exceed 30 minutes. If it is above 30 minutes, yeast viability will be hurt
•    Pitch the rehydration yeast into the fermentation vessel. The temperature difference between the wort to be inoculated and the rehydration yeast should never be over 10° C.