AhtanumvsAurora

Ahtanum (aroma) and Aurora (dual purpose) serve different purposes. Comparing acids, aromas and character helps pick the right hop.

Ahtanum

Aroma

Alpha acid

3.5–6.5%

Beta acid

4–6.5%

Total oil

0.5–1.7 mL

United States

Aurora

Dual purpose

Alpha acid

6.5–13%

Beta acid

2.7–5.5%

Total oil

0.9–1.8 mL

Slovenia

Key differences

When to pick Ahtanum

  • Higher beta acid - smoother, longer-lasting bitterness
  • More myrcene - pronounced citrus and resinous notes
  • Aroma-focused - ideal for dry hopping
  • Richer, more complex aroma profile

When to pick Aurora

  • Higher alpha acid - stronger bittering
  • Versatile - works for both bittering and aroma

Aroma profile and use

Shared aromas

Floral

Only in Ahtanum

CitrusGrapefruitGeraniumPineEarthyCedarLemon

Only in Aurora

SpicyLemongrassNoble

Property

PropertyAhtanumAurora
Alpha acid3.5–6.5%6.5–13%
Beta acid4–6.5%2.7–5.5%
Co-humulone30–35%20–26%
Total oil0.5–1.7 mL0.9–1.8 mL
Myrcene45–55%20–25%
Humulene15–22%20–25%
Caryophyllene9–12%6–9%
Farnesene0–1%5–10%
OriginUnited StatesSlovenia
PurposeAromaDual purpose

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