olly77 said:
this will be my first extract brew; the equipment i have so far built up;
25ltf fermenting barrel with a bubbler and a 25ltr Fermenting tub
a 10ltr stainless steel pot
Ingredients i have;
1kg light malt extract
0.5kg Lager crushed malt grain
0.5kg crystal crushed grain
Hops; Northern Brewer Alpha 8% 113g & Saaz Alpha 2.1% 113g and Cascade alpha acid 7.6% 100g.
Lager Yeast
Hmmm, well with that lot you can't make a full sized 5 gallon batch . . . but that is not a problem . . . just scale down to say 10L. What I've done is to use the recipe tool to put together a simple recipe for a
European Style Lager
If I was doing this I would ditch all the grain, and just use more of the Light/extra light spray malt . . . doing a mini mash with 500g of Lager malt is hardly worth anything. . . . but its fun and potentially a useful technique to play with for flavouring additions in other extract beers.
Firstly we need to remove any chlorine from your tap water. Fill your sanitised and rinsed FV with 15L of water and add 1/2 a crushed campden tablet. . . . and stir . . . rest for 2 minutes.
Now we have to convert the starch in the lager malt into sugars that the yeast can use for fermentation, and we do this by making a porridge of the grain.
Heat 1.5 litres of water from the FV to 68C, and put the grain into the water contained in a fine muslin / nylon bag (A cut of leg of a pair of clean tights works) . . . And put this in the oven at 65C. . . . . You can do this in a large saucepan . . . should be enough room.
. . Rest for 60 minutes . . . Now we have to get the sugars out of the grain porridge . . . and we do this by sparging . . .
Bring another litre of water from the FV up to 72C, then remove the saucepan from the oven . . .remove the sock of grain from the liquid in the saucepan and put it in a sieve over your 10L stockpot . . . pour the liquid from the saucepan over the grain sock . . . . then when that has drained . . . do the same with the additional Litre of water. . . . throw the sock and grain away. . . . . .
Mix the malt extract with 5L of water from the boiler (Its easier to do this while its cool) stirring until there are no big lumps . . . then add that to the stockpot, and start to bring it to the boil . . . watch out for the foam as it comes to the boil. . . . when its been boiling for a few minutes and the foam has subsided, add 15g of Northern Brewer hops, now we are going to boil these for 60 minutes to extract the bittering compounds . . . as the boil goes on you will loose liquid in the pot to evaporation . . . simply top this up with boiling water taken from the FV.
After 45 minutes of boiling add 25g of your Saaz Hops for flavour. . . . and continue to boil for the final 15 minutes.
Turn off the heat and carefully transfer the stockpot to the kitchen sink which is full of cold water . . . stand the stockpot in the cold water to try and cool things down. . . . you will have to stir the wort and replace the water in the sink . . . when its cool to about 80C add and additional 15g of Saaz hops for aroma . . . continue cooling until you are down to 25C if possible.
Using a sieve try and remove as much of the hops as possible from the stockpot . . . then give it a stir put the lid on and wait. We now need to move this into the FV so empty the FV of water (Keep some in a jug . . . you will need to top the FV up). Now syphon the cool wort into the FV allowing it to splash around to pick up some oxygen . . . . . If you keep the end of the syphon near the side of the pot you should leave a lot of gunk behind as it will have formed a cone in the middle of the stockpot.
Top up to 10L with the treated water you retained, the gravity at this point should be around 1.043 . . . If its a couple of points off you can always add a couple of hundred grams of sugar to make up the difference. Stir like blazes until your arm is tired to work up a good froth. . . . Then pitch your yeast, and give it another really good stir. . . . . As you have a lager yeast you will ideally want to ferment this cool, ideally around 15C if you can achieve that. . . . It should be finished fermenting after 10-14 days, so you can bottle it using 1/4 to a 1/2 a tsp of sugar per 500ml bottle.