Fermentis 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 oxygene trapping
– Contribution in roundness and maturation aromas
– Sticks well at the bottom of the bottles/casks and forms a nice haze when it is resuspended
Fermentation: 15-25°C (59-77°F)
Pitching: 2 to 7 g/hl
SafAle 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 25 to 29°C (77°F to 84°F).
Leave to rest 15 to 30 minutes.
-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 sweetend 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.
Fermentis SafAle F2 (500g)