Brewday: April 5, 2010 - Bigger and Browner

Summary

Volume to fermenter[ltr (gal)]: 42.00 Original Gravity[SG]:1.054
Mash Efficiency [%]: 75.00% Bitterness[IBU]:22.48
Colour [SRM(EBC)]:33.08(65.16)

Mash

Mash water volume [ltr (gal)]:31.00 (8.19) Mash tun volume required[ltr (gal)]:45.27 (11.96)
Total Mash Grain Weight [gms (lbs)]:10332.68 (22.78)

Grains:

Type Weight [gms (lbs)] Actual Weight
Amber Malt 189.87 (0.42)                     
Barley Flaked (Bairds) 599.74 (1.32)                     
Brown Malt 379.73 (0.84)                     
Chocolate Malt (UK) 599.74 (1.32)                     
Crystal Malt Medium (Bairds) 429.60 (0.95)                     
Crystal Pale (Thomas Fawcett) 853.96 (1.88)                     
Maris Otter Malt (Bairds) 7280.03 (16.05)                     
   
   

Mash Schedule:

Name Method Step temp
[C (F)]
Step time
[minutes]
Addition amount
[ltr (gal)]
Addition temp
[C (F)]
Liquor/grist ratio
[ltr/kg]
Protien Infusion 53.00 (127.40) 5 22.14 (5.85) 59.12 (138.42) 2.14
Sacchrification Infusion 65.00 (149.00) 90 8.86 (2.34) 95.00 (203.00) 3.00

Mash gravity @ 100% conversion [SG]:1.045

Test ph

Observed ph:
pH adjustments:


Sparge

Minimum required efficiency:75.00 % Max expected efficiency83.98 %

Sparge No Water addition [l]Expected recovered volume [l]Required gravityMax expected gravity
1 7.35 23.00 67.92 79.22
     
2 23.00 23.00 27.18 31.70
     
Combined 30.35 46.00 47.55 55.46
     

Assumed constants:

Absorbtion [l/kg]:1.3 Grain displacement [l/kg]:0.67

Preboil Values:

Preboil wort volume [ltr (gal)]:46.00 (12.15) @ mash out temp.47.10 (12.44)
Preboil gravity [SG]:1.048

Boil

Hops:

Hop Utilisation Method: Tinseth
Type AA(%) IBU Weight [gms (oz)] Actual Weight Time(minutes)
Fuggle 4.75% 10.22 43.86 (1.55)             60.00
Super Pride 14.25% 12.26 17.54 (0.62)             60.00

Other fermentables:

Type Weight [gms (lbs)] Actual Weight
Golden Syrup 371.49 (0.82)                     

Postboil Values:

Evaporation [ltr (gal)]:2.00 (0.53)
Postboil wort volume [ltr (gal)]:45.91 (12.13)@ boiling temp.47.83 (12.63)
Postboil target gravity [SG]:1.053mash items only1.050
Boiler loses [ltr (gal)]:2.00 (0.53)

Yeast Pitching

Type Min Temp[C (F)] Max Temp[C (F)]
Ringwood Ale - Wyeast 1187 18.00 (64.40) 23.00 (73.40)

Estimated required yeast cells (billion): 429.19

Dried yeast (gm): 22.83
 
No of liquid yeast(Wyeast/Whitelabs) packs: 4.57(Assumes 94% viability)
 
Approximate amount of solid slurry (ml):
One hour settling 608.78(Assumes 25% trub and 94% viability)
One day settling 304.39(Assumes 25% trub and 94% viability)
Longer than 1 week settling 158.96(Assumes 25% trub and 80% viability)

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