Brewday: July 11, 2009 - Krispy Kolsch
Summary
| Volume to fermenter[ltr (gal)]: | 22.00 | Original Gravity[SG]: | 1.053 |
|---|---|---|---|
| Mash Efficiency [%]: | 75.00% | Bitterness[IBU]: | 25.00 |
| Colour [SRM(EBC)]: | 3.44(6.79) |
Mash
| Mash water volume [ltr (gal)]: | 19.15 (5.06) | Mash tun volume required[ltr (gal)]: | 29.31 (7.74) |
|---|---|---|---|
| Total Mash Grain Weight [gms (lbs)]: | 6384.59 (14.08) |
Grains:
| Type | Weight [gms (lbs)] | Actual Weight |
|---|---|---|
| Pilsner Lager Malt (Bairds) | 6024.94 (13.28) | |
| Wheat Malt (Barrett Burston) | 359.65 (0.79) | |
Mash Schedule:
| Name | Method | Step temp [C (F)] |
Step time [minutes] |
Addition amount [ltr (gal)] |
Addition temp [C (F)] |
Liquor/grist ratio [ltr/kg] |
|---|---|---|---|---|---|---|
| Saccrification | Direct | 67.00 (152.60) | 60 | 0.00 (0.00) | 0.00 (32.00) | 3.20 |
| Mash gravity @ 100% conversion [SG]: | 1.048 |
|---|
Test ph
Observed ph:pH adjustments:
Sparge
| Minimum required efficiency: | 75.00 % | Max expected efficiency | 83.94 % |
|---|
| Sparge No | Water addition [l] | Expected recovered volume [l] | Required gravity | Max expected gravity |
|---|---|---|---|---|
| 1 | 5.88 | 15.00 | 64.88 | 76.81 |
| 2 | 15.00 | 15.00 | 26.01 | 30.79 |
| Combined | 20.88 | 30.00 | 45.45 | 53.80 |
Assumed constants:
| Absorbtion [l/kg]: | 1.3 | Grain displacement [l/kg]: | 0.67 |
|---|
Preboil Values:
| Preboil wort volume [ltr (gal)]: | 30.00 (7.93) | @ mash out temp. | 30.71 (8.11) |
|---|---|---|---|
| Preboil gravity [SG]: | 1.045 |
Boil
Hops:
Hop Utilisation Method: Tinseth| Type | AA(%) | IBU | Weight [gms (oz)] | Actual Weight | Time(minutes) |
|---|---|---|---|---|---|
| Nelson sauvin | 12.50% | 25.00 | 24.48 (0.86) | 60.00 |
Postboil Values:
| Evaporation [ltr (gal)]: | 4.00 (1.06) | ||
|---|---|---|---|
| Postboil wort volume [ltr (gal)]: | 27.73 (7.33) | @ boiling temp. | 28.89 (7.63) |
| Postboil target gravity [SG]: | 1.052 | mash items only | 1.052 |
| Boiler loses [ltr (gal)]: | 4.00 (1.06) |
Yeast Pitching
| Type | Min Temp[C (F)] | Max Temp[C (F)] |
|---|---|---|
| Kölsch - Wyeast 2056 | 13.00 (55.40) | 21.00 (69.80) |
| Estimated required yeast cells (billion): | 327.94 |
| Dried yeast (gm): | 17.44 | |
| No of liquid yeast(Wyeast/Whitelabs) packs: | 3.49 | (Assumes 94% viability) |
| Approximate amount of solid slurry (ml): | ||
| One hour settling | 465.16 | (Assumes 25% trub and 94% viability) |
| One day settling | 232.58 | (Assumes 25% trub and 94% viability) |
| Longer than 1 week settling | 121.46 | (Assumes 25% trub and 80% viability) |