I use a home built two-tier RIMS (Re-circulating infusion mash system), using recycled 50 litre stainless steel kegs. The tops have been cut open.
This is the hot side of my brewing set-up:
A typical brewing session goes like this:
Plan recipe
First I decide what to brew. Maybe someone at the previous Wort Hog meeting inspired me. Maybe I tasted a brilliant beer somewhere... I use a software program to calculate levels of ingredients, etc. I have various forms for to keep track of things on the brewing day. Those homebrews for the nerves have a habit of letting things go astray...:
Make yeast starter
I am a yeast man - I usually grow up a starter from some slants I keep:
Or I'll start with an imported yeast smack pack. Or I'll get some fresh yeast from Moritz (Drayman's Brewery). More fun - I'll try to capture yeast from commercial beer (draft preferably!).
This usually takes about a week - a speck of yeast into 5ml of wort, shake like hell, two days later pitch into 50ml of wort, two days later into 500ml and finally into 2 litres of wort. Two days later into the brew
This is what the yeast starter looks like, just before pitching:
Clean brewing tanks, etc
Measure and crush malt
I use a home built crusher, built by my brother Johan. It works like a bomb! It takes less than 10 minutes to crush 10kg of malt:
Measure hops
Fill hot liquor tank
Calibrate pH meter
Adjust hot liquor pH, salts
A picture of my "lab":
Heat hot liquor to 77C.
For heating I use high pressure gas burners - check that flame:
Sterilise counter-flow chiller, pump, etc.
This I do by re-circulating boiling water from my boiler through the chiller for 10 to 15 minutes. I built a counter-flow chiller using 15ml and 20ml copper tubing. It reduces the temperature from boiling to 25C:
Here's a picture of the magnetically coupled pump:
Sterilise fermentation tank, fermentation lock and fermentation fridge
Mash in
Using a ratio of 2.5 units of water (62C to 68C) to 1 unit of malt, I mash in into the mash tun. It has a false bottom to allow for the drawing off of clear wort. This is the inside of the mash tun:
I keep the mash at the desired temperature for about 90 minutes, using the pump and the gas flame under the mash tun. (I do not re-circulate all the time - only when the temperature drops too far). This is what the mash looks like:
Measure pH after 10 min
Fill hot liquor tank for sparging
Adjust sparge water pH
Heat sparge water
Re-circulate wort until clean, about 10 minutes
Sparge wort into kettle
Using water heated to 77C, I sparge the wort from the mash. This usually takes about one hour. I use gravity feed for the sparge water:
Measure first runnings
Measure last runnings
Measure volume, SG, pH of wort
Boil wort
I believe in a vigorous boil for 90 minutes, like this:
Add bittering hops t-60, where t= end of boil time
Add flavour hops & Irish Moss t-15
Discard spent grains
Add aroma hops t-1
Top-up water to desired level
Stop boil
Stir and wait 20 minutes
Sterilise oxygen stone
Sterilise oxygen pipe
Force cool wort into fermenter
This is what is left in the boiler after the wort has been pumped off:
Add oxygen
I add medical grade oxygen at 35kPa for 5 minutes, pumped through an oxygen stone, like this:
Pitch yeast
Ferment in fermentation fridge
Clean-up
Finished for the day!
By now I've earned the couple of homebrews I've been drinking to ease the process...
Later the week:
Sterilise bottles/ kegs
Sterilise secondary fermenter
Rack beer into secondary
Prepare finings
Wait 24h
Add finings
Wait two to three days
Sterilise racking off container
Rack off
Bottle/keg
Drink!