Brewday: June 28, 2010 - MB Irish Red - All grain

Summary

Volume to fermenter[ltr (gal)]: 23.00 Original Gravity[SG]:1.047
Mash Efficiency [%]: 75.00% Bitterness[IBU]:22.76
Colour [SRM(EBC)]:16.25(32.02)

Mash

Mash water volume [ltr (gal)]:19.29 (5.10) Mash tun volume required[ltr (gal)]:28.89 (7.63)
Total Mash Grain Weight [gms (lbs)]:6429.89 (14.18)

Grains:

Type Weight [gms (lbs)] Actual Weight
Ale Malt (Barrett Burston) 5734.34 (12.64)                     
Chocolate Malt (Bairds) 63.23 (0.14)                     
Crystal Malt Medium (Bairds) 632.32 (1.39)                     
   
   

Mash Schedule:

Name Method Step temp
[C (F)]
Step time
[minutes]
Addition amount
[ltr (gal)]
Addition temp
[C (F)]
Liquor/grist ratio
[ltr/kg]
Sacchrification Infusion 67.00 (152.60) 60 19.29 (5.10) 73.29 (163.92) 3.00

Mash gravity @ 100% conversion [SG]:1.052

Test ph

Observed ph:
pH adjustments:


Sparge

Minimum required efficiency:75.00 % Max expected efficiency83.18 %

Sparge No Water addition [l]Expected recovered volume [l]Required gravityMax expected gravity
1 5.29 14.50 66.49 78.12
     
2 14.50 14.50 27.27 32.04
     
Combined 19.79 29.00 46.88 55.08
     

Assumed constants:

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

Preboil Values:

Preboil wort volume [ltr (gal)]:29.00 (7.66) @ mash out temp.29.69 (7.84)
Preboil gravity [SG]:1.047

Boil

Hops:

Hop Utilisation Method: Tinseth
Type AA(%) IBU Weight [gms (oz)] Actual Weight Time(minutes)
Fuggle 4.75% 20.30 51.28 (1.81)             60.00
Fuggle 4.75% 2.45 17.09 (0.60)             10.00


Postboil Values:

Evaporation [ltr (gal)]:4.00 (1.06)
Postboil wort volume [ltr (gal)]:26.72 (7.06)@ boiling temp.27.84 (7.35)
Postboil target gravity [SG]:1.054mash items only1.054
Boiler loses [ltr (gal)]:2.00 (0.53)

Yeast Pitching

Type Min Temp[C (F)] Max Temp[C (F)]
Irish Ale - Wyeast 1084 16.00 (60.80) 23.00 (73.40)

Estimated required yeast cells (billion): 201.71

Dried yeast (gm): 10.73
 
No of liquid yeast(Wyeast/Whitelabs) packs: 2.15(Assumes 94% viability)
 
Approximate amount of solid slurry (ml):
One hour settling 286.12(Assumes 25% trub and 94% viability)
One day settling 143.06(Assumes 25% trub and 94% viability)
Longer than 1 week settling 74.71(Assumes 25% trub and 80% viability)

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