Brew Number 56

• Gumpy's "Boston Cream" Ale kit
• 1.7 kg Grumpy's Medium Bittered LME (25 IBUs)
• Wyeast #1275 (Thames Valley) (1st generation - 19/09/07)

Was brought out to 23L. Yeast pitched at 22.9 degrees. Used fermenter #2.

Apparently the yeast has an apparent attenuation of 77% If that is so the final gravity should be...

FG = (SG - 1000) * (1 - AA/100) + 1000 
   = ((1043 - 1000) * (1 - 77/100)) + 1000
   = 1009.9

Date	Measured SG	Temperature	Corrected SG	Notes
22/09/2007 14:30	1042	22.9	1043
30/09/2007 14:00	1012	18.0	1012	Bottled

Notes

• Boiled with finishing hops for 3 minutes.
• Used 200mL of the 1st generation starter made on 19/09/07.
• Forgot to aerate with the paddle, however it should have been aerated a fair amount as the water addition was vigorous.
• Beer mostly fermented at 18C. Had a few glitches with the software & config so it spent a while at 12C initially.
• Used 160g of priming sugar.
• Got 61 375mL bottles from 23.5 L of beer.

-- Main.darius - 22 Sep 2007