All steps programmed in an immobilized mash recirculating wort system, the Spiedel Braumeister 20L.
Mash pH 5.4, approx 8 ml lactic acid 80% added to mash
"Pilsner Multi Step" program on Braumeister
Protein Rest: 55° F for 10 minutes at mash in
Beta Sacch’ Rest: 65° F for 40 minutes (end at 9.2 BRIX or 1.038 density)
Alpha Sacch’ Rest: 69 F for 30 minutes
No mash out step, just proceed to boil (end at 11.4 BRIX, or 1.046 density)
Rinse grain with 3L of 55 degree water...."sparge"
Add 3 drops Fermcap-S to limit boil over
Ramp to boil for 90 minutes with chimney
10 minutes to the end of boil, added 1/2 whirl floc tablet and 2 grams yeast nutrient. 1 gram ascorbic acid.
Chilled to 90F, added water to 20 liters total. Gravity of 12.8 Prix, 1.052 g/ml. Floating tube hydrometer was 1.050 or so. Initial gravity on float was 1.0488 at 90F.
Fermented under pressure at 8 PSI in 6.5 liter keg at ambient temp of 78 degrees, no additional heating was used, just let the beer slowly cool to around 78F.
Pitched yeast at 90 degrees F and let them go
added 2 drops fermcap to the keg before sealing.
Beer hit stable gravity after about 30 hours. After 48 hours I cooled to 40F and added 1/2 tsp of unflavored gelatin. Cold crashed for 4 days, on CO2 line set to 2 Bar/30 PSI.
FG looks to be about 1.018 or so, giving an ABV of 4.6%.
Kveik dislikes trimaltose, so I might do a longer first mash temp and shorten the second a little next time to get a little more completion.
Pressure transferred off yeast cake into empty keg. My fermenter keg has a floating dip tube, so this was used to minimize yeast transfer into the final product.