Southern BrewervsAhtanum

Southern Brewer (bittering) and Ahtanum (aroma) serve different purposes. Comparing acids, aromas and character helps pick the right hop.

Southern Brewer

Bittering

Alpha acid

8–12%

Beta acid

2.5–5%

Total oil

0.4–1.5 mL

South Africa

Ahtanum

Aroma

Alpha acid

3.5–6.5%

Beta acid

4–6.5%

Total oil

0.5–1.7 mL

United States

Key differences

When to pick Southern Brewer

  • Higher alpha acid - stronger bittering
  • Bittering workhorse - efficient in the mash

When to pick Ahtanum

  • Higher beta acid - smoother, longer-lasting bitterness
  • Aroma-focused - ideal for dry hopping
  • Richer, more complex aroma profile

Aroma profile and use

Shared aromas

Earthy

Only in Southern Brewer

Woody

Only in Ahtanum

CitrusGrapefruitGeraniumPineFloralCedarLemon

Property

PropertySouthern BrewerAhtanum
Alpha acid8–12%3.5–6.5%
Beta acid2.5–5%4–6.5%
Co-humulone38–41%30–35%
Total oil0.4–1.5 mL0.5–1.7 mL
Myrcene-45–55%
Humulene-15–22%
Caryophyllene-9–12%
Farnesene-0–1%
OriginSouth AfricaUnited States
PurposeBitteringAroma

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