Brewday: June 13, 2010 - Krispy Kolsch
Summary
| Volume to fermenter[ltr (gal)]: | 20.00 | Original Gravity[SG]: | 1.058 |
|---|---|---|---|
| Mash Efficiency [%]: | 75.00% | Bitterness[IBU]: | 25.51 |
| Colour [SRM(EBC)]: | 3.70(7.30) |
Mash
| Mash water volume [ltr (gal)]: | 18.30 (4.83) | Mash tun volume required[ltr (gal)]: | 26.71 (7.06) |
|---|---|---|---|
| Total Mash Grain Weight [gms (lbs)]: | 6100.00 (13.45) |
Grains:
| Type | Weight [gms (lbs)] | Actual Weight |
|---|---|---|
| Pilsner Lager Malt (Bairds) | 5500.00 (12.13) | |
| Wheat Malt (Barrett Burston) | 600.00 (1.32) | |
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 | Infusion | 50.00 (122.00) | 5 | 11.39 (3.01) | 56.37 (133.47) | 1.87 |
| Sacchrification | Infusion | 67.00 (152.60) | 60 | 6.91 (1.83) | 95.00 (203.00) | 3.00 |
| Mash gravity @ 100% conversion [SG]: | 1.060 |
|---|
Test ph
Observed ph:pH adjustments:
Sparge
| Minimum required efficiency: | 75.00 % | Max expected efficiency | 81.91 % |
|---|
| Sparge No | Water addition [l] | Expected recovered volume [l] | Required gravity | Max expected gravity |
|---|---|---|---|---|
| 1 | 4.32 | 13.00 | 69.89 | 81.30 |
| 2 | 13.00 | 13.00 | 29.73 | 34.58 |
| Combined | 17.32 | 26.00 | 49.81 | 57.94 |
Assumed constants:
| Absorbtion [l/kg]: | 1.3 | Grain displacement [l/kg]: | 0.67 |
|---|
Preboil Values:
| Preboil wort volume [ltr (gal)]: | 26.00 (6.87) | @ mash out temp. | 26.62 (7.03) |
|---|---|---|---|
| Preboil gravity [SG]: | 1.050 |
Boil
Hops:
Hop Utilisation Method: Tinseth| Type | AA(%) | IBU | Weight [gms (oz)] | Actual Weight | Time(minutes) |
|---|---|---|---|---|---|
| Perle | 8.10% | 25.51 | 34.83 (1.23) | 60.00 |
Postboil Values:
| Evaporation [ltr (gal)]: | 4.00 (1.06) | ||
|---|---|---|---|
| Postboil wort volume [ltr (gal)]: | 23.69 (6.26) | @ boiling temp. | 24.68 (6.52) |
| Postboil target gravity [SG]: | 1.058 | mash items only | 1.058 |
| Boiler loses [ltr (gal)]: | 2.00 (0.53) |
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): | 326.25 |
| Dried yeast (gm): | 17.35 | |
| No of liquid yeast(Wyeast/Whitelabs) packs: | 3.47 | (Assumes 94% viability) |
| Approximate amount of solid slurry (ml): | ||
| One hour settling | 462.77 | (Assumes 25% trub and 94% viability) |
| One day settling | 231.38 | (Assumes 25% trub and 94% viability) |
| Longer than 1 week settling | 120.83 | (Assumes 25% trub and 80% viability) |