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Old 09-04-2012, 12:13 AM   #1
novahokie09
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Default 2nd AG Batch

This afternoon I attempted my 2nd AG batch. I brewed Crowded House Pale, which I found on this site.

8# Pale
1# vienna
1# C-20
1# Flaked Wheat

1.25 oz Willamette, 60 min
1.00 oz Cascade, 10 min
1.00 oz Cascade, 5 min
1.00 oz Cascade, dry (4-5 days, secondary)

I had some of the same problems from the first batch, but I really improved on the cooling and vorlaufing:

1) Mash temp target was 154F, but I got 151F after addition of strike, cold and then hot water. I was at 158F after strike, dropped to 147 after adding 1 qt of 68F, and then finished at 151F after another 1 qt of 170F, so I just accepted 151F. How consistent are you guys at hitting your target?

2) I didn't take a post mash OG. Rather I took it after the boil, and it was around 1.045. My post mash target was 1.056, so I'm not sure how this post boil SG compares to the post-mash OG? Any recommendations on how the post-mash compares with the post-boil? My initial thoughts are the SG should increase post-boil compared to post-mash, but I'm not sure and haven't found much information confirming one way or the other.

3) I've used Zythos, Cascade and Willamette hops in my first two batches, and I like the Willamette the best so far. I can't get my hands on Simcoe, Amarillo from either of my two local home brew shops, so can you guys recommend some of your favorite hops that I should try next? Also, any recommendations on how to get experience with different hops in an efficient manner? I'd like to do a hop sampling of the smell especially. Are any classes/brew shops offering these to customers?

Finally, I just want to state that I really love my plate chiller. I just got it this week, so I didn't get to use it on my first batch. It was definitely worth the 135 I spent. I got the B3-23A-30 plate from DudaDiesel, and it cooled 200F wort to 83F in one pass. This didn't require 20 minutes of stirring or transferring water. Can't wait to get an immersion pump to get it down to the final 15F.

Thanks for the information.


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Old 09-04-2012, 12:25 AM   #2
duboman
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Your pre boil/post mash reading should be lower than the post boil so your mash efficiency was low, check crush, mash temps, ph, stirring.

For learning about hops, smell them and read about them. You can also brew a SMaSH, single malt, single hop beer
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Old 09-04-2012, 01:03 AM   #3
novahokie09
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Okay thanks.

I thought the grain wasn't as well milled as my first batch. I had around 80% efficiency with my first mash using pre-crushed Briess grains. This time it's looking closer to 55-60ish%, but I had my brew shop mill the grain at their site. Next time, I'll ask them to run it through twice.

Also, I think I can attribute the low OG because I had around 7.5 gallon wort (3 gallon first runnings + 4.5 gallons from two-batch sparge runs) to account for grain loss, boil off, and trub loss. Last time, I only had 6.5 gallons and got around 4.5 gallons into the fermentor.

Next time, I'll be sure to increase the grain to account for my mash + sparge water volumes and verify the grains looked well milled.

Thanks for your response.
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