AurumvsCluster

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

Aurum

Aroma

Alpha acid

3.5–5.7%

Beta acid

3.1%

Total oil

0.5–1.7 mL

Germany

Cluster

Dual purpose

Alpha acid

5.5–9%

Beta acid

4.5–6%

Total oil

0.4–1 mL

United States

Key differences

When to pick Aurum

  • More essential oils - more intense aroma
  • Aroma-focused - ideal for dry hopping
  • Richer, more complex aroma profile

When to pick Cluster

  • Higher alpha acid - stronger bittering
  • Higher beta acid - smoother, longer-lasting bitterness
  • Versatile - works for both bittering and aroma

Aroma profile and use

Shared aromas

FloralEarthy

Only in Aurum

SpicyFruityMildHerbalCitrusNoble

Only in Cluster

Sweet

Property

PropertyAurumCluster
Alpha acid3.5–5.7%5.5–9%
Beta acid3.1%4.5–6%
Co-humulone20–23%33–43%
Total oil0.5–1.7 mL0.4–1 mL
Myrcene-38–46%
Humulene-15–20%
Caryophyllene-8–10%
Farnesene-0–1%
OriginGermanyUnited States
PurposeAromaDual purpose

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