AG #5 - Chinooks Away [with photos]

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AG #5 - Chinooks Away [with photos]

Post by Nermal » Mon Oct 12, 2009 11:15 am

Hi all,

Based on this recipe with the grain bill boosted slightly for my 70% efficiency, some torrified wheat added and hop schedule adjusted to what I had in the freezer.

Used pH strips to measure the mash pH for the first time - came out at (I think) 5.2 :)

Mashed at 66C and used US-05 yeast.

Went well - I got 23L at 1047. I do need to get a bigger boiler though - 70L nordic optical perhaps.

Full writeup with photos is now up on my site.

Cheers :)

markbatten

Re: AG #5 - Chinooks Away [with photos]

Post by markbatten » Mon Oct 12, 2009 12:43 pm

Great pictures! I've never seen aerating like that!

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Re: AG #5 - Chinooks Away [with photos]

Post by WishboneBrewery » Mon Oct 12, 2009 12:49 pm

Looks like it went pretty well :)
If I'm dry sprinkling my yeast I tend to sprinkle, leave for 15mins to soak and start sinking then aerate well.

escapizm

Re: AG #5 - Chinooks Away [with photos]

Post by escapizm » Mon Oct 12, 2009 1:01 pm

Looks good, let us know how it tastes/turns out.

I presume you dont stir when cooling? Ive yet to use my IC!

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Re: AG #5 - Chinooks Away [with photos]

Post by Nermal » Mon Oct 12, 2009 1:20 pm

escapizm wrote:Looks good, let us know how it tastes/turns out.

I presume you dont stir when cooling? Ive yet to use my IC!
I don't stir when cooling but I do lift the IC and move it around a bit to try to cool the centre and top half of the wort. I could do with a secondary smaller coil in the middle but I seem to get decent enough results with the single coil. :)

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Re: AG #5 - Chinooks Away [with photos]

Post by yashicamat » Mon Oct 12, 2009 10:32 pm

I'm drinking my Chinook Ale now. Very tasty, the hoppiness is rather moreish! Can't wait for my Centennial Ale to be ready . . . even more aroma hops in that one! :D
Rob

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Re: AG #5 - Chinooks Away [with photos]

Post by yashicamat » Wed Oct 14, 2009 10:39 pm

By the way, noticed in your write up that you mention a false bottom as a way of increasing efficiency. I was using a H&G coolbox and was achieving 83% efficiency regularly. I always fly sparged (although not with any fancy sprinklers, I simply had a pipe from the HLT into the top of the grain bed, sat inside some perforated foil to act as a diffuser so the liquor didn't channel through the grain) and sparged fairly slowly, about 0.8L a minute. Switching to my false bottom, my efficiency plunged to about 65%! :shock: But this was because the run off speed was so much quicker, so I backed it off to about 0.8L a minute again and now can hit 85%. :D
Rob

POTTER BREWERY (mothballed 2020)

Fermenting: nowt (sadly). Drinking: still a few bottles of my imperial stout knocking about . . . it's rather good now

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Re: AG #5 - Chinooks Away [with photos]

Post by WishboneBrewery » Thu Oct 15, 2009 6:27 am

Do you think that with Fly sparging its less likely to get a sticking mash? (I'm just thinking less stirring than when Batch sparging) :)

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Re: AG #5 - Chinooks Away [with photos]

Post by Nermal » Thu Oct 15, 2009 10:50 am

yashicamat wrote:By the way, noticed in your write up that you mention a false bottom as a way of increasing efficiency. I was using a H&G coolbox and was achieving 83% efficiency regularly. I always fly sparged (although not with any fancy sprinklers, I simply had a pipe from the HLT into the top of the grain bed, sat inside some perforated foil to act as a diffuser so the liquor didn't channel through the grain) and sparged fairly slowly, about 0.8L a minute. Switching to my false bottom, my efficiency plunged to about 65%! :shock: But this was because the run off speed was so much quicker, so I backed it off to about 0.8L a minute again and now can hit 85%. :D
I normally run off pretty quick - getting two batches of 15L in around 5 minutes each - so 3 litres a minute if not more. The tubing I use is 3/8th inch I think so if the syphon effect kicks in it will probably do 6-8 litres a minute. Could this fast run off (even 3 litres a minute) be causing my crap efficiency ? I've always thought you just run off as fast as you can when batch sparging.

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