California Common Water Profile and Recipe

California Common, also known as "Steam Beer," is a uniquely American beer style that originated in the 19th century, primarily in San Francisco. It's a hybrid style that uses lager yeast fermented at warmer, ale-like temperatures. The result is a beer with a firm malt backbone—often toasty or caramel-like—with moderate hop bitterness and noticeable Northern Brewer hop character (woody, minty, and earthy). The style bridges the gap between crisp lagers and fuller-bodied ales, offering both refreshment and complexity. It’s typically amber to light copper in color with a dry finish and moderate carbonation.

Water chemistry for California Common should support a clean fermentation, firm bitterness, and a balanced malt profile. Aim for moderate sulfate levels to accentuate hop crispness and moderate calcium for yeast health and clarity. A typical profile might be: Calcium 75–100 ppm, Sulfate 100–150 ppm, Chloride 50–70 ppm, and low bicarbonate to avoid excessive residual sweetness or harshness. This sulfate-to-chloride balance helps the hop character come through cleanly without overwhelming the malts. Keep mash pH in the range of 5.3–5.4 for optimal fermentability and flavor balance.

Simple California Common Recipe (5-Gallon Batch):

• Grain Bill:

  • 9 lb American Pale 2-Row

  • 1 lb Munich Malt

  • 0.5 lb Crystal 40

  • 0.25 lb Victory or Biscuit Malt

• Water Profile Target:

  • Calcium: 90 ppm

  • Sulfate: 120 ppm

  • Chloride: 60 ppm

  • Magnesium: ~10 ppm

  • Sodium: < 30 ppm

  • pH: 5.3–5.4

• Hops (All Northern Brewer):

  • 0.75 oz @ 60 min

  • 0.5 oz @ 30 min

  • 0.5 oz @ 10 min

  • 0.5 oz @ flameout

• Yeast: SafLager W-34/70 (fermented at 60–65°F), or SafAle US-05 for a clean hybrid ale version

• OG: ~1.052 | FG: ~1.012 | ABV: ~5.2% | IBU: ~35

Mash at 152°F for 60 minutes. If using W-34/70, ferment at the higher end of its range (around 62°F) to encourage the hybrid character. Ferment for 10–14 days, then cold condition if desired. This yeast can handle the slightly warmer temps traditionally associated with California Common.

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