Arpeggiator!

By Ken Bazley

Recipe is part of Recipe Index

BJCP 2021 Style 9A Doppelbock

A pale/amber version during which I did my first (and only) single-decoction mash. Named after a song by post-hardcore pioneers Fugazi, who ironically and famously abstained from alcohol.

Awards

Lager than Life 2026 (Pillars Brewery, London)

3rd - Strong and Smoked

Measures

• IBU 20
• ABV 7.7%
• OG 1.073
• FG 1.015
• EBC 24
• 10 litres into fermenter.

Ingredients

Water

SES water acidified to hit 5.5 mash pH (ended up 5.76 for some reason)

• Sodium metabisulphite – pinch into brewing liquor and again for sparge
• Lactic acid, 4.4ml in the mash
• Lactic Acid, 1.7ml in the sparge

Malt

• Weyermann Eraclea Pilsner malt, 2.6kg - 3EBC
• Weyermann Barke Munich, 1.2kg – 20EBC
• Simpsons Vienna malt, 1.2kg – 7.5EBC
• Weyermann Caramunich , 100g – 100.5EBC

Hops

• Hallertauer Hersbrucker (1.6%AA) 25g @ 90min
• Saaz (3.5%aa) 10g @ 90min

Yeast

• German Bock (WLP833)

Process

Mash

• Protein rest at 57C (ish) for 30 minutes.
• Single decoction pulled and boiled for 30mins.
• Returned decoction to raise mash to 66C for another 20mins

Boil

• 90 minute boil

Ferment

• 3 days at 12C, then 2C rise each day until finish of fermentation on day 7.

Serving

• Final beer carbonated to around 2.0 vols and lagered for 12 weeks ish.