SMaSH Pale Ale - Veinna/Mosaic

Post #1 made 10 years ago
This is my second BIAB. I hadn't tweaked the spreadsheet for my losses and grain efficiencies (since I messed up on recording information for my first BIAB. So I missed my OG by quite a bit, but just went with it for now since this is a learning batch. My measured OG was 1.042 instead of 053. I figured that this was due to my equipment having a lower boil off rate and mash conversion efficiency. Thoughts and comments are appreciated.

I brewed on 8/30/2015 so it's been bubbling away nicely in the fermenter and smells amazing. I'll try to report back on tasting notes when I have a chance to sample.

NOTE: BIABacus didn't show the misc. ingredient in the report tab so I just entered it manually



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Recipe Overview

Brewer: Shu
Style: American Pale Ale
Source Recipe Link:
ABV: 5.1% (assumes any priming sugar used is diluted.)

Original Gravity (OG): 1.053
IBU's (Tinseth): 35
Bitterness to Gravity Ratio: 0.66
Colour: 13.4 EBC = 6.8 SRM

Kettle Efficiency (as in EIB and EAW): 83 %
Efficiency into Fermentor (EIF): 71.2 %

Note: This is a Pure BIAB (Full Volume Mash)

Times and Temperatures

Mash: 60 mins at 66 C = 150.8 F
Boil: 60 min
Ferment:

Volumes & Gravities
(Note that VAW below is the Volume at Flame-Out (VFO) less shrinkage.)
The, "Clear Brewing Terminology," thread at http://www.biabrewer.info/" onclick="window.open(this.href);return false;

Total Water Needed (TWN): 16.85 L = 4.45 G
Volume into Boil (VIB): 15.26 L = 4.03 G @ 1.042
Volume of Ambient Wort (VAW): 11.67 L = 3.08 G @ 1.053
Volume into Fermentor (VIF): 10 L = 2.64 G @ 1.053
Volume into Packaging (VIP): 9.26 L = 2.45 G @ 1.013 assuming apparent attenuation of 75 %

The Grain Bill (Also includes extracts, sugars and adjuncts)

Note: If extracts, sugars or adjuncts are not followed by an exclamation mark, go to http://www.biabrewer.info" onclick="window.open(this.href);return false; (needs link)

100% Vienna (10 EBC = 5.1 SRM) 2514 grams = 5.54 pounds

The Hop Bill (Based on Tinseth Formula)

18.5 IBU Mosaic Pellets (12.3%AA) 7.1 grams = 0.25 ounces at 60 mins
9.2 IBU Mosaic Pellets (12.3%AA) 7.1 grams = 0.25 ounces at 15 mins
7.4 IBU Mosaic Pellets (12.3%AA) 14.2 grams = 0.5 ounces at 5 mins

Mash Steps

Mash Type: Pure BIAB (Full-Volume Mash): for 60 mins at 66 C = 150.8 F

Mashout for for 10 mins at 76 C = 168.8 F

Miscellaneous Ingredients

Irish Moss 0.5 tsp, boil 15 minutes

Chilling & Hop Management Methods

Chilling Method: Immersion Chiller

Fermentation & Conditioning

Fermentation: Wyeast Am. Ale II 1272

Special Instructions/Notes on this Beer
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Last edited by Shumanfoo on 02 Sep 2015, 22:10, edited 1 time in total.

Post #2 made 10 years ago
Shu, Due to the Mash Temperature of 150F, I would Suggest a 90 minute mash.

Unless your checking the Gravity every 15 minutes.

IMHO, YMMV.
Honest Officer, I swear to Drunk, I am Not God.
    • SVA Brewer With Over 100 Brews From United States of America

Post #3 made 10 years ago
joshua wrote:Shu, Due to the Mash Temperature of 150F, I would Suggest a 90 minute mash.

Unless your checking the Gravity every 15 minutes.

IMHO, YMMV.
Thanks for the input. Most of what I have seen are 60 minute mash times. Do you suggest 90 due to BIAB or because of the mash temperature? I understand how the alpha and beta amylase stages work but maybe not so much in regards to adjusting mash time based on mash temp.
Last edited by Shumanfoo on 02 Sep 2015, 22:54, edited 1 time in total.

Post #4 made 10 years ago
The Alpha amylase won't be working very well at 150F.

So, the Beta amylase is slower since it takes 1 glucose molecule at Time from the ends of the starch.

153F is the Fast conversion Temperature for good Beer. (160F is best for distilleries)
Honest Officer, I swear to Drunk, I am Not God.
    • SVA Brewer With Over 100 Brews From United States of America

Post #5 made 10 years ago
As a follow up, I just bottled this batch with ended up with a 1.010 FG. Smelled and tasted amazing, can't wait till the bottles are ready to drink.

For what it's worth, I think I figured out at least in part why the OG was lower than expected. It may have had a lttle to do with mash time/temp. But in addition, after I plugged stuff back in I realized I got more volume into fermenter than planned (almost an extra 0.5 gallons). This was due to less loss along the way from grain absorbtion, boil-off, and kettle to fermenter transfer. My actual efficiency wasn't too bad from start to finish, just didn't account for the larger VIF.

To test that theory, I edited a new BIABacus file with the same recipe but different equipment settings and it came out pretty close for a 1.042 OG with my actual VIF as opposed to 1.053 with the original planned VIF.

Post #6 made 10 years ago
Sounds Great, Biabacus will only tell you Volume Problems and lets you adjust your Brewing Conditions.

With all the Base Grains available, and the Hop choices, with 100's of yeast selections, you have a few thousand SMaSH recipes to try.
Honest Officer, I swear to Drunk, I am Not God.
    • SVA Brewer With Over 100 Brews From United States of America
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