Fermentis SafAle F2, 500 g

Safale F-2 has been selected specifically for secondary fermentation in bottle and in cask. This yeast assimilates very little maltotriose but assimilates basic sugars (glucose, fructose, saccharose, maltose) and is caracterized by a neutral aroma profile respecting the base beer character.

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

Safale F-2 was designed for craft brewers in 20g sachets, the dosage being 2 to 35 g per hl and the strain being only suitable for secondary fermentation.
The dosage rate depends on the alcoholic content and the level of carbonation prior to re-fermentation. Consult the product technical sheet for more information regarding dosage rates.

Rehydration: Safbrew F-2 should not be rehydrated directly in the beer. Sprinkle the yeast in minimum 10 times its weight of sterile water at a temperature of 27 °C ± 3 °C (80 °F ± 6 °F). Leave to rest 15 to 30 minutes. Gently stir.

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 (carbonation at 15 °C can take over 2 weeks). At the end of refermentation, the beer can be cooled down and will gain in roundness after 2 to 3 weeks.

Optimum fermentation temperature: 15 - 25 °C (59 - 77) °F
Producer: Fermentis
Product specifications