Kolsch 
All Grain Recipe
Submitted By: Bklatt (Shared)
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| Brewer: BK | |
| Batch Size: 12.00 gal | Style: Kölsch (6C) |
| Boil Size: 17.56 gal | Style Guide: BJCP 2008 |
| Color: 2.9 SRM | Equipment: BKs 30 gal brewery- 1.045- 1.060- 75% Efficiency |
| Bitterness: 26.1 IBUs | Boil Time: 90 min |
| Est OG: 1.050 (12.3° P) | Mash Profile: Temperature Mash, 2 Step, Light Body |
| Est FG: 1.011 SG (2.8° P) | Fermentation: Koelsch (Kolsch), Two Stage |
| ABV: 5.1% | Taste Rating: 30.0 |
Ingredients
| Amount |
Name |
Type |
# |
| 26.00 gal |
German Pilsner Water |
Water |
1 |
| 25.00 g |
Calcium Chloride (Mash 60 min) |
Misc |
2 |
| 10.00 g |
Gypsum (Calcium Sulfate) (Mash 60 min) |
Misc |
3 |
| 20 lbs |
Pilsner (Weyermann) (1.7 SRM) |
Grain |
4 |
| 1 lbs |
Vienna Malt (3.5 SRM) |
Grain |
5 |
| 3.50 oz |
Tradition [4.0%] - Boil 60 min |
Hops |
6 |
| 1.50 oz |
Tettnang [1.7%] - Boil 20 min |
Hops |
7 |
| 1.0 pkgs |
German Ale/Kolsch (White Labs #WLP029) |
Yeast |
8 |
Notes
Added 1 ml 85% phosphoric to the strike water prior to mashing in.
Added 3 ml 85% phosphoric to the mash.
Sparge took 53 minutes
Pre-boil PH 5.4, 1.037
Ended at 1.050. After the wort reached 60, decanted from the starter and added some fresh wort to the starter.
7/30- pitched the next day at 2 PM. 60 degrees. 8 vol O2.
7/31- bubbling away at 10 AM when checked. Bumped fermentation temp to 63.
8/1- 64
8/2- 65
8/3- 1.010- PH 4.0. Added a couple of pinches of baking soda to the sample and brought the PH up to 4.3. The sample lost all of the acid bite I initially tasted. Bumped temp to 68 to help finish the fermentation.
8/5-1.010- 68 degrees PH 4.08
8/8-1.010- 68 degrees PH 4.13- dumped yeast. Dropped temp to 62 to start cold crash. Added 10 ml Biofine.
8/9-57
8/10-53
8/15- dropped 5 degrees per day to get to 33. Mixed 5 grams pickling lime and 5 grams baking soda into 200 ml RO water. Figured out with a small scale sample to add roughly 125 ml of that mixture to raise the PH from 4.15 to 4.4. Took a sample after adding, and measured 4.6 ��. Test again after filter.This Recipe Has Not Been Rated
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