Brewday: April 21, 2010 - Nelson Sauvign Lager

Summary

Volume to fermenter[ltr (gal)]: 23.00 Original Gravity[SG]:1.038
Mash Efficiency [%]: 75.00% Bitterness[IBU]:37.76
Colour [SRM(EBC)]:6.66(13.12)

Mash

Mash water volume [ltr (gal)]:0.70 (0.18) Mash tun volume required[ltr (gal)]:16.68 (4.41)
Total Mash Grain Weight [gms (lbs)]:232.38 (0.51)

Grains:

Type Weight [gms (lbs)] Actual Weight
Caramel/Crystal Malt - 20L 232.38 (0.51)                     
   
   

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 efficiency98.50 %

Sparge No Water addition [l]Expected recovered volume [l]Required gravityMax expected gravity
1 15.83 14.50 2.96 4.13
     
2 14.50 14.50 0.36 0.51
     
Combined 30.33 29.00 1.66 2.32
     

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]:1.002

Boil

Hops:

Hop Utilisation Method: Tinseth
Type AA(%) IBU Weight [gms (oz)] Actual Weight Time(minutes)
Nelson sauvin 10.50% 30.77 34.86 (1.23)             40.00
Nelson sauvin 10.50% 6.99 34.86 (1.23)             5.00
Nelson sauvin 10.50% 0.00 34.86 (1.23)             0.00

Other fermentables:

Type Weight [gms (lbs)] Actual Weight
Light Dry Extract 435.72 (0.96)                     
Light Dry Extract 784.29 (1.73)                     
Pale Liquid Extract 1742.88 (3.84)                     

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]:1.038mash items only1.002
Boiler loses [ltr (gal)]:2.00 (0.53)

Yeast Pitching

Type Min Temp[C (F)] Max Temp[C (F)]
German Lager Yeast - WLP830 10.00 (50.00) 13.00 (55.40)

Estimated required yeast cells (billion): 331.44

Dried yeast (gm): 17.63
 
No of liquid yeast(Wyeast/Whitelabs) packs: 3.53(Assumes 94% viability)
 
Approximate amount of solid slurry (ml):
One hour settling 470.13(Assumes 25% trub and 94% viability)
One day settling 235.07(Assumes 25% trub and 94% viability)
Longer than 1 week settling 122.76(Assumes 25% trub and 80% viability)

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