Since the second brew I've been doing a lot of reading about home brewing. Firstly John Palmer's How to Brew finally arrived from Fishpond so I took a read through it - it's easy to follow and clearly explains the process so I understand why people recommend it so highly. I've also joined the Aussie Home Brewer forum which has a wealth of information and helpful Aussie (and Kiwi) home brewers who are happy to impart their knowledge about all things to do with brewing. One very useful tool they have on the forum is a spreadsheet which allows you to input your ingredients which then spits out various readings which align with the style of beer you are trying to recreate (e.g. O.G, FG, IBU and EBC).
Ingredients:
1. Black Rock NZ Draught Kit 1.5kg
2. Muntons LME 1.8kg
3. US-05 Yeast
4. 60g US Centennial Hops
5. 60g US Cascade Hops.
I also picked up a fluid thermometer and some more cleaner/steriliser.
The Brewing process:
1. Sterilise fermenter, stirring spoon and airlock using the remaining sodium met solution.
2. Add approximately 400ml of the LME to 10L of water. Dissolve and then bring to boil.
3. The maximum amount of time you need to boil the hops for is 60 minutes. Therefore using this as a guide the minute the water is at a rolling boil you make your first hop addition and then start the countdown for 60 minutes. I used the following plan:
At 60 minutes: Add 20g Centennial.
At 25 minutes: Add 20g Centennial and 30g Cascade
At 10 minutes: Add 20g Centennial and 30g Cascade
Centennial is a high alpha acid hop therefore it will impart quite a lot of bitterness to the beer. Adding hops in the middle stage of the boil will impart flavours and at the end, aroma. The Cascade is a lower alpha acid hop which will impart more flavour and aroma to the brew hence only two additions.
5. Warm the Black Rock kit in some hot water.
6. Cool the boil as quickly as you can. I waited for a few minutes then put the stock pot in the sink and fill it with cold tap water which seemed to be quite effective.
7. Add the kit to the fermenter with some hot water. Mix. Add the remaining LME to the fermenter at the same time.
8. Add the boiled water to the fermenter. Mix again and top up with cold water to 23 litres. Check temp and hope it's not too hot to pitch the yeast.
9. Pitch yeast. Seal fermenter.
Notes:
1. There are a lot of references to boiling 10-12 litres of water then cooling it overnight so that you have clean cool water to add to the warm mix in the fermenter. I didn't have anywhere to store the post boiled water so I purchased a 10L container of water at the Warehouse ($6.50) and fridged it overnight.
2. I'm not sure what I expected but when you add the hop pellets to the boil they disintegrate and form a slurry on the top of the water. When the timer hit zero and I took the pot off the heat I used a sieve to scoop the hop slurry out into a second pot:
Pouring the kit into the fermenter - nice and oxygenated.
Cooling the hop boil in the sink with cold water.
The Original Gravity reading:
The reading is approximate 1042.
Final note: Having gone through the brewing process I then decided to plug all the details into the spreadsheet from the forum (as referenced earlier) and it says that the beer would be quite highly bitter and that the OG is too low. I guess I should have done this before hand but then again sometimes ignorance is bliss. The fermenter is now in the garage and the temperature is reading 18-20 degrees which is perfect for fermenting.




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