This is my third
attempt at a 100% Brett IPA. So far I’ve brewed with Brett-C and Brett-Brux
Trois. Each batch has been different and successful. There are a lot of myths
and confusion when it comes to Brettanomyces. Many people associate Brett with
sour but the truth is that Brett will not sour a beer on its own. It can
produce trace amounts of acetic acid in the presence of oxygen but not enough
to produce the levels of acidity that are commonly associated with Brett. I
think most people are not aware that Brett can fully attenuate a beer and can
ferment it clean as well. There are a few examples of 100% Brett fermented
beers on the market, BRUX from Russian River and Sierra Nevada and Mo Bretta
Brett from Lost Abbey and New Belgium. The majority of 100% Brett fermented
beers come from Crooked Stave. For the most part though, they are hard to find.
For my third
installment I’m using yeast that I got from BKyeast called C2. It was Brett
that he isolated from a Cantillon Iris bottle. It is best described on his
website but many people note fruity aroma from this particular strain. I would
have to agree with that assessment based off of the aromas emanating from the
starter. The biggest aroma that I noted was peach.
I decided to
rebrew my last Brett IPA that way I would have some way to compare the characteristics
of the new yeast strain. Part of my procedure did change from the last batch.
This time I decided to ferment the beer outside of my chest freezer in hopes of
stressing the yeast to cause it to produce more esters. I also took more notes
during the fermentation to note any interesting developments.
Stats
Original Gravity: 1.050
Final Gravity: 1.014
Estimated IBU: 70
SRM: 3o
ABV%: 5.2%
Efficiency Est: 65%
Boil Time: 60 min
Recipe
Original Gravity: 1.050
Final Gravity: 1.014
Estimated IBU: 70
SRM: 3o
ABV%: 5.2%
Efficiency Est: 65%
Boil Time: 60 min
Recipe
- 70% - 9.5 lbs –Two Row
- 22% - 3 lbs – Wheat Malt
- 4% - 0.5 lbs – Carapils
- 4% - 0.5 lbs – Acid Malt
Hops
- Mash hop - Centennial – pellet – 2oz
- Flame out – Citra – pellet – 1oz
- Flame out – Amarillo – pellet – 1oz
- Flame out – Chinook – pellet – 1oz
- Dry hop 7 days – Citra – pellet – 2oz
- Dry hop 7 days – Amarillo – pellet – 1oz
- Dry hop 7 days – Chinook – pellet – 1oz
- Keg hop – Citra – leaf – 1oz
Yeast
- Brettanomyces – C2 - BKyeast
Mash
Mashed single infusion for 60 minutes at 153oF, single sparge at 170oF
Mashed single infusion for 60 minutes at 153oF, single sparge at 170oF
Notes:
6/23/13 - Made 2L starter and placed on stir plate covered with foil.
6/26/13 - Turned stir plate off. Pellicle formed.
6/29/13 – Brewed by myself. Easy brewday, no
problems. For the mash I
added 3 tsp of gypsum and 1 tsp of Calcium Chloride and 2 tsp gypsum and 1
tsp Calcium Chloride to the sparge water. Measured OG was 1.055/ Chilled to 80F
and pitched yeast with minimal aeration and moved the carboy upstairs to
ferment in ambient temperature of 75F.
6/30/13 – Small pellicle has formed over the
top of the beer.
7/1/13 – The pellicle is thick now and has
trapped large amounts of CO2 forming large bubbles.
7/2/13 – The pellicle is gone and there is a
small layer of krausen.
7/3/13 – The krausen has disappeared but there
appears to still active fermentation.
7/13/13 - Gravity down to 1.014. Racked to Keg and first round of dry hops added.
7/23/13 - Second round of dry hops added. 1 oz leaf Citra. Pressure set to 15 psi at 42F
8/7/13 - First tasting. Disappointing from the stand point that I didn't end up with what I wanted, but not that bad.
7/13/13 - Gravity down to 1.014. Racked to Keg and first round of dry hops added.
7/23/13 - Second round of dry hops added. 1 oz leaf Citra. Pressure set to 15 psi at 42F
8/7/13 - First tasting. Disappointing from the stand point that I didn't end up with what I wanted, but not that bad.