Brewday: April 21, 2010 - Firestein IPA

Summary

Volume to fermenter[ltr (gal)]: 23.00 Original Gravity[SG]:1.005
Mash Efficiency [%]: 75.00% Bitterness[IBU]:0.00
Colour [SRM(EBC)]:2.32(4.56)

Mash

Mash water volume [ltr (gal)]:1.83 (0.48) Mash tun volume required[ltr (gal)]:17.42 (4.60)
Total Mash Grain Weight [gms (lbs)]:608.47 (1.34)

Grains:

Type Weight [gms (lbs)] Actual Weight
Munich Malt - 10L 607.31 (1.34)                     
Pale Malt (2 Row) US 1.16 (0.00)                     
   
   

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]:1.000

Test ph

Observed ph:
pH adjustments:


Sparge

Minimum required efficiency:75.00 % Max expected efficiency97.81 %

Sparge No Water addition [l]Expected recovered volume [l]Required gravityMax expected gravity
1 15.19 14.50 7.59 10.49
     
2 14.50 14.50 1.12 1.55
     
Combined 29.69 29.00 4.36 6.02
     

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]:1.004

Boil

Hops:

Hop Utilisation Method: Tinseth
Type AA(%) IBU Weight [gms (oz)] Actual Weight Time(minutes)


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]:1.005mash items only1.005
Boiler loses [ltr (gal)]:2.00 (0.53)

Yeast Pitching

Type Min Temp[C (F)] Max Temp[C (F)]

Estimated required yeast cells (billion): 21.60

Dried yeast (gm): 1.15
 
No of liquid yeast(Wyeast/Whitelabs) packs: 0.23(Assumes 94% viability)
 
Approximate amount of solid slurry (ml):
One hour settling 30.65(Assumes 25% trub and 94% viability)
One day settling 15.32(Assumes 25% trub and 94% viability)
Longer than 1 week settling 8.00(Assumes 25% trub and 80% viability)

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