Friday, March 21, 2008

No. 9 Brewing process

So, how will it go... Last night I did a 'dry run' which proved a lot wetter than planned as the tap installed for running the cooler leaks from its mechanism. Oh crap, but it's not bad and can still be used.

10:15am Measured 20l water into boiler. Note, this is more than enough, 15l is better.
10:25am Started it heating to 77C and started weighing grains. Noticed that No. 8, that worked well, had 8Kg grain/extract so will increase my recipe to 6Kg. Note: I only did this because I forgot about the sugar. Duh.
11:30 Grains are ground, water at 74C, grains added to water in grain bag, temperature in bag is around 66C
13:00 Iodine test indicated conversion not complete, repeating every 15 mins to see what happens.
13:30 Conversion complete, heated 4l sparge water to near boiling, drained sweet liquid into large pan. Sparged twice, second time with 2l, draining into small pan. Managed to return liquid to boiler at 60C.
13:45 Started heating sweet liquid and measuring hops.
14:30 Boil started. Time for lunch and to retrieve the fermentation barrel for sterilisation. Added 250g sugar (Glucose/Dextrose).
16:00 Boil complete, started cooling. All fits well, cooled to 27C indicated by foil thermometer on barrel. Added 6l cold water, OG1040. Added 2l more - OG1038 and we're off. Pitched the yeast at 21C.
16:45 All done.


Notes:
Used 6Kg grains only because I forgot about the sugar!
Heating 15l water to 77C for mashing is enough and allows more for sparging.
When returning sweet liquid to boiler careful to filter settled muck out as far as possible. This will have settled in the pan and can simply be left behind.

No comments: