Brewday: May 3, 2010 - Black Beer
Summary
| Volume to fermenter[ltr (gal)]: | 43.00 | Original Gravity[SG]: | 1.052 |
|---|---|---|---|
| Mash Efficiency [%]: | 75.00% | Bitterness[IBU]: | 26.08 |
| Colour [SRM(EBC)]: | 25.01(49.26) |
Mash
| Mash water volume [ltr (gal)]: | 32.40 (8.56) | Mash tun volume required[ltr (gal)]: | 45.73 (12.08) |
|---|---|---|---|
| Total Mash Grain Weight [gms (lbs)]: | 10799.98 (23.81) |
Grains:
| Type | Weight [gms (lbs)] | Actual Weight |
|---|---|---|
| Black Malt (Bairds) | 50.00 (0.11) | |
| Carafa Special Type 1 (Weyermann) | 250.00 (0.55) | |
| Caramunich Type 2 Malt (Weyermann) | 300.00 (0.66) | |
| Chocolate Malt (Bairds) | 200.00 (0.44) | |
| Munich I Malt (Weyermann) | 4999.99 (11.02) | |
| Pilsner Malt - Bohemian (Weyermann) | 4999.99 (11.02) | |
Mash Schedule:
| Name | Method | Step temp [C (F)] |
Step time [minutes] |
Addition amount [ltr (gal)] |
Addition temp [C (F)] |
Liquor/grist ratio [ltr/kg] |
|---|---|---|---|---|---|---|
| Protein rest | Infusion | 53.00 (127.40) | 5 | 32.40 (8.56) | 57.37 (135.27) | 3.00 |
| Sacchrification | Direct | 68.00 (154.40) | 60 | 32.40 (8.56) | 74.42 (165.96) | 3.00 |
| Mash gravity @ 100% conversion [SG]: | 1.049 |
|---|
Test ph
Observed ph:pH adjustments:
Sparge
| Minimum required efficiency: | 75.00 % | Max expected efficiency | 84.82 % |
|---|
| Sparge No | Water addition [l] | Expected recovered volume [l] | Required gravity | Max expected gravity |
|---|---|---|---|---|
| 1 | 6.10 | 23.50 | 71.56 | 82.58 |
| 2 | 23.50 | 23.50 | 27.88 | 32.17 |
| Combined | 29.60 | 47.00 | 49.72 | 57.38 |
Assumed constants:
| Absorbtion [l/kg]: | 1.3 | Grain displacement [l/kg]: | 0.67 |
|---|
Preboil Values:
| Preboil wort volume [ltr (gal)]: | 47.00 (12.42) | @ mash out temp. | 48.12 (12.71) |
|---|---|---|---|
| Preboil gravity [SG]: | 1.050 |
Boil
Hops:
Hop Utilisation Method: Rager| Type | AA(%) | IBU | Weight [gms (oz)] | Actual Weight | Time(minutes) |
|---|---|---|---|---|---|
| Hallertau Hersbrucker | 2.30% | 6.11 | 40.00 (1.41) | 60.00 | |
| Super Pride | 14.25% | 17.00 | 17.96 (0.63) | 60.00 | |
| Hallertau Hersbrucker | 2.30% | 2.97 | 57.22 (2.02) | 20.00 | |
| Hallertau Hersbrucker | 2.30% | 0.00 | 29.97 (1.06) | 0.00 |
Postboil Values:
| Evaporation [ltr (gal)]: | 2.00 (0.53) | ||
|---|---|---|---|
| Postboil wort volume [ltr (gal)]: | 45.96 (12.14) | @ boiling temp. | 47.87 (12.65) |
| Postboil target gravity [SG]: | 1.052 | mash items only | 1.052 |
| Boiler loses [ltr (gal)]: | 2.00 (0.53) |
Yeast Pitching
| Type | Min Temp[C (F)] | Max Temp[C (F)] |
|---|---|---|
| Bohemian Lager - Wyeast 2124 | 9.00 (48.20) | 14.00 (57.20) |
| Estimated required yeast cells (billion): | 846.56 |
| Dried yeast (gm): | 45.03 | |
| No of liquid yeast(Wyeast/Whitelabs) packs: | 9.01 | (Assumes 94% viability) |
| Approximate amount of solid slurry (ml): | ||
| One hour settling | 1200.80 | (Assumes 25% trub and 94% viability) |
| One day settling | 600.40 | (Assumes 25% trub and 94% viability) |
| Longer than 1 week settling | 313.54 | (Assumes 25% trub and 80% viability) |