BS IPA (blackberry sour)

We messed up by adding too much where without adding rice hulls. The mash all stuck together allowing much our sparge water to go right down the sides. This left us with a lower original gravity than expected: 1.060

The souring process proved difficult with ph test strips. We couldn't get an accurate reading on our acidity and I don't think our beer turned out as sour as we wanted. (we only soured it for 18 hours)

Mash the grains at 155°F (68°C) for 45 minutes. Vorlauf until your runnings are clear, then run off into the kettle. Sparge the grains to obtain 6 gallons (23 l) of wort—or more, depending on your evaporation rate. Boil for 60 minutes. For the lactose, remove the kettle from the heat, stir in the lactose, return the kettle to the heat, and bring it back to a boil for the remaining 10 minutes.

Do not introduce the whirlpool hops at the first whirlpool, as they will inhibit the Lactobacillus blend. Pre-acidify the wort to a pH of 4.5, then chill the wort to 95°F (35°C) and pitch the Lactobacillus blend. There’s no need to hold the heat at 95°F (35°C), but don’t allow it to drop much below 75°F (24°C). After a pH of 3.2–3.3 is obtained, reheat the wort to 180°F (82°C) and follow the hopping schedule for the second whirlpool. After the whirlpool, rest for 15 minutes, then chill the wort to slightly below fermentation temperature, about 66°F (19°C). Aerate the wort and pitch the British Ale yeast.

Hold fermentation at 68°F (20°C) for 24 hours once signs of fermentation are visible. Allow the temperature to rise to 70°F (21°C) during the remainder of fermentation, following the dry-hop schedule. After adding the vanilla and blackberries, allow the berries to ferment out at 70°F (21°C).

HOPS AND ADDITIONS SCHEDULE
2.8 lb (635 g) lactose at 10 minutes
2.6 oz (37 g) Citra [12.2% AA] at 2nd whirlpool for 5 minutes
2.6 oz (37 g) El Dorado [15% AA] at 2nd whirlpool for 5 minutes
.8 oz (11 g) Chinese cassia bark at 2nd whirlpool for 5 minutes
5.4 oz (77 g) Citra [12.2% AA] at dry hop for 5 days
5.4 oz (77 g) El Dorado [15% AA] at dry hop for 5 days
1.4 oz (20 g) Chinese cassia bark at dry hop for 5 days
.5 oz (7 g) vanilla beans for 5 days
22 lb (4.1 kg) blackberries for 5 days