Why baking soda and acid? Those dk opposite things, you shouldn’t need both.Going to give this yeast a go in a couple weeks, with this Psuedo-Oktoberfest recipe:
Brewfather Link
Lutrafest Pseudo Lager
Märzen
5.9% / 14.2 °P
All Grain
69% efficiency
Batch Volume: 5.15 gal
Boil Time: 75 min
Mash Water: 7.48 gal
Sparge Water: 0.79 gal
Total Water: 8.27 gal
Boil Volume: 6.4 gal
Pre-Boil Gravity: 1.053
Vitals
Original Gravity: 1.058
Final Gravity: 1.013
IBU (Tinseth): 21
Color: 11.5 SRM
Mash
Strike Temp — 154.9 °F
Temperature — 150 °F — 90 min
Temperature — 168 °F — 15 min
Malts (11 lb 12 oz)
4 lb (34%) — Avangard Pilsner Malt — Grain — 1.8 °L
3 lb 8 oz (29.8%) — Viking Malt Munich Light — Grain — 6.6 °L
3 lb (25.5%) — Avangard Vienna Malt — Grain — 2.8 °L
1 lb (8.5%) — Caramunich Malt — Grain — 41.9 °L
4 oz (2.1%) — Weyermann Melanoidin — Grain — 22.7 °L
Hops (2 oz)
1 oz (17 IBU) — Mount Hood 5.7% — First Wort
0.5 oz (4 IBU) — Mount Hood 5.7% — Boil — 15 min
0.5 oz — Mount Hood 5.7% — Boil — 0 min
Miscs
2.7 g — Baking Soda (NaHCO3) — Mash
5.3 g — Calcium Chloride (CaCl2) — Mash
1.5 g — Epsom Salt (MgSO4) — Mash
1.6 g — Gypsum (CaSO4) — Mash
4 ml — Phosphoric Acid 80% — Mash
1 g — Servomyces — Boil — 15 min
1 items — Whirlfloc — Boil — 15 min
Yeast
1 pkg — Omega Lutra OYL-071 78%
2 L starter
6.95 oz DME / 8.47 oz LME
324 billion yeast cells
1.19 million cells / ml / °P
Fermentation
Primary — 72 °F — 10 PSI — 7 days
Conditioning — 38 °F — 10 PSI — 14 days
Carbonation: 2.4 CO2-vol
Water Profile
Ca2+
59Mg2+
5Na+
32Cl-
86SO42-
48HCO3-
77
Any thoughts on the recipe and/or the need for a starter?
I think you’re fine with the 3 base malts, but I’d drop the caramunich to like half that. I just did a 4.5 gallon batch of octoberfest, mostly 10L Munich (7lbs) and a little Pilsner (2lbs), with 8oz caramunich. It’s not quite as crisp as I’d like it but perhaps it was my ferm temp which got up to 67 ( oly-106, not lutra) due to a power outage. Notes for my next batch would be to replace some Munich with Vienna, and reduce the cara. Haven’t tried melanoidin before, considering that too