cyberbackpacker
Well-Known Member
Brewed up 3 batches this weekend, but had an issue with my last batch. (RECIPE and mash schedule is at end of post)
I first decided to do only a 2.5 g batch as I was out of fermenters except for my one gallon Rossi jugs. So I scaled the recipe in beersmith down to a 2.5 gallon batch size.
I used my corona mill for the first time on this batch, but compared to a crush I had from Northern Brewer (side to side comparison) I had a nice crush without any shredding of husks.
Hit all my temps, and on sparging I collected 4.25 gallons of 1.030 wort (est OG was 1.042)
After the boil I collected about 2 3/5 gallons of 1.042 wort (est OG was 1.050).
So I cannot figure out what went wrong on this batch why numbers were so far off... I am fine having a "weaker" session beer, but I want to know so I can better dial in my setup.
My first thought is I may have actually measured out my grains wrong and had mashed less grain than called for.
Second thought is that maybe my thermometer is off, so I was mashing outside of my desired range.
Hydrometer was verified with distilled water, and samples were measured at calibration temperature of 68F.
Recipe: Buffalo Valley Brown Ale- Half Batch 60 minute boil
Brewer: Kevin Hilgert
Asst Brewer:
Style: American Brown Ale
TYPE: All Grain
Taste: (35.0)
Recipe Specifications
--------------------------
Batch Size: 2.50 gal
Boil Size: 3.57 gal
Estimated OG: 1.050 SG
Estimated Color: 22.0 SRM
Estimated IBU: 29.6 IBU
Brewhouse Efficiency: 75.00 %
Boil Time: 60 Minutes
Ingredients:
------------
Amount Item Type % or IBU
3.25 lb Pale Malt, Maris Otter (3.0 SRM) Grain 72.22 %
0.38 lb Pale Malt, Maris Otter (3.0 SRM) Grain 8.33 %
0.25 lb Biscuit Malt (23.0 SRM) Grain 5.56 %
0.25 lb Caramalt (33.5 SRM) Grain 5.56 %
0.13 lb Chocolate Malt (350.0 SRM) Grain 2.78 %
0.13 lb Chocolate Malt (450.0 SRM) Grain 2.78 %
0.13 lb Golden Naked Oats (8.0 SRM) Grain 2.78 %
0.36 oz Cascade [6.30 %] (60 min) (First Wort HopHops 18.4 IBU
0.12 oz Challenger [6.30 %] (60 min) (First Wort Hops 6.1 IBU
0.06 oz Cascade [6.30 %] (45 min) Hops 2.6 IBU
0.06 oz Cascade [6.30 %] (15 min) Hops 1.3 IBU
0.12 oz Challenger [6.30 %] (5 min) Hops 1.1 IBU
0.50 items Whirlfloc Tablet (Boil 15.0 min) Misc
1 Pkgs SafAle American Ale (Fermentis #US-05) Yeast-Ale
Mash Schedule: Single Infusion, Medium Body, Batch Sparge
Total Grain Weight: 4.50 lb
----------------------------
Single Infusion, Medium Body, Batch Sparge
Step Time Name Description Step Temp
40 min Step Add 5.63 qt of water at 130.2 F 122.0 F
40 min Step Add 5.63 qt of water at 188.5 F 153.0 F
I first decided to do only a 2.5 g batch as I was out of fermenters except for my one gallon Rossi jugs. So I scaled the recipe in beersmith down to a 2.5 gallon batch size.
I used my corona mill for the first time on this batch, but compared to a crush I had from Northern Brewer (side to side comparison) I had a nice crush without any shredding of husks.
Hit all my temps, and on sparging I collected 4.25 gallons of 1.030 wort (est OG was 1.042)
After the boil I collected about 2 3/5 gallons of 1.042 wort (est OG was 1.050).
So I cannot figure out what went wrong on this batch why numbers were so far off... I am fine having a "weaker" session beer, but I want to know so I can better dial in my setup.
My first thought is I may have actually measured out my grains wrong and had mashed less grain than called for.
Second thought is that maybe my thermometer is off, so I was mashing outside of my desired range.
Hydrometer was verified with distilled water, and samples were measured at calibration temperature of 68F.
Recipe: Buffalo Valley Brown Ale- Half Batch 60 minute boil
Brewer: Kevin Hilgert
Asst Brewer:
Style: American Brown Ale
TYPE: All Grain
Taste: (35.0)
Recipe Specifications
--------------------------
Batch Size: 2.50 gal
Boil Size: 3.57 gal
Estimated OG: 1.050 SG
Estimated Color: 22.0 SRM
Estimated IBU: 29.6 IBU
Brewhouse Efficiency: 75.00 %
Boil Time: 60 Minutes
Ingredients:
------------
Amount Item Type % or IBU
3.25 lb Pale Malt, Maris Otter (3.0 SRM) Grain 72.22 %
0.38 lb Pale Malt, Maris Otter (3.0 SRM) Grain 8.33 %
0.25 lb Biscuit Malt (23.0 SRM) Grain 5.56 %
0.25 lb Caramalt (33.5 SRM) Grain 5.56 %
0.13 lb Chocolate Malt (350.0 SRM) Grain 2.78 %
0.13 lb Chocolate Malt (450.0 SRM) Grain 2.78 %
0.13 lb Golden Naked Oats (8.0 SRM) Grain 2.78 %
0.36 oz Cascade [6.30 %] (60 min) (First Wort HopHops 18.4 IBU
0.12 oz Challenger [6.30 %] (60 min) (First Wort Hops 6.1 IBU
0.06 oz Cascade [6.30 %] (45 min) Hops 2.6 IBU
0.06 oz Cascade [6.30 %] (15 min) Hops 1.3 IBU
0.12 oz Challenger [6.30 %] (5 min) Hops 1.1 IBU
0.50 items Whirlfloc Tablet (Boil 15.0 min) Misc
1 Pkgs SafAle American Ale (Fermentis #US-05) Yeast-Ale
Mash Schedule: Single Infusion, Medium Body, Batch Sparge
Total Grain Weight: 4.50 lb
----------------------------
Single Infusion, Medium Body, Batch Sparge
Step Time Name Description Step Temp
40 min Step Add 5.63 qt of water at 130.2 F 122.0 F
40 min Step Add 5.63 qt of water at 188.5 F 153.0 F