Fermentis SafAle™ F-2 Active Dry Ale Yeast

SafAle™ F-2 brewing yeast has been selected specifically for secondary fermentation in bottle and in cask. This yeast assimilates very little amount of maltotriose but assimilates basic sugars (glucose, fructose, saccharose, maltose). It is characterized by a neutral aroma profile respecting the base beer character and settles very homogeneously at the end of fermentation. It’s neutral aroma profile, high alcohol resistance and stickiness characteristics make it a perfect match for consistent re-fermentation in bottle and cask.

Ingredients: Yeast (Saccharomyces cerevisiae), emulsifier E491

SafAle™ F-2 resists to high alcohol levels (>10% v/v) and allows brewers to obtain all the properties of refermentation such as:

• Beer preservation thanks to oxygen trapping

• Contribution in roundness and maturation aromas

• Carbonation

• Sticks well at the bottom of the bottles/casks and forms a nice haze when it is resuspended

Usage

• Add 5 to 10 grams of sugar per liter of beer (to obtain a saturation of 2.5 to 5.0 g/l of CO2)

• Pitch the sweetened beer, that should be at fermentation temperature (20-25°C) with the rehydrated yeast. Carbonation will be achieved in 1 to 2 weeks at 20-25°C*

• At the end of refermentation, the beer can be cooled down and will gain in roundness after 2 to 3 weeks.