PahtovsAurum

Pahto (bittering) and Aurum (aroma) serve different purposes. Comparing acids, aromas and character helps pick the right hop.

Pahto

Bittering

Alpha acid

17–20%

Beta acid

4.5–6%

Total oil

1–2.5 mL

United States

Aurum

Aroma

Alpha acid

3.5–5.7%

Beta acid

3.1%

Total oil

0.5–1.7 mL

Germany

Key differences

When to pick Pahto

  • Higher alpha acid - stronger bittering
  • More essential oils - more intense aroma
  • Higher beta acid - smoother, longer-lasting bitterness
  • Bittering workhorse - efficient in the mash

When to pick Aurum

  • Aroma-focused - ideal for dry hopping
  • Richer, more complex aroma profile

Aroma profile and use

Shared aromas

HerbalEarthy

Only in Pahto

NeutralCleanSmooth

Only in Aurum

SpicyFruityFloralMildCitrusNoble

Property

PropertyPahtoAurum
Alpha acid17–20%3.5–5.7%
Beta acid4.5–6%3.1%
Co-humulone26–32%20–23%
Total oil1–2.5 mL0.5–1.7 mL
Myrcene58–72%-
Humulene8–11%-
Caryophyllene3–6%-
Farnesene0–1%-
OriginUnited StatesGermany
PurposeBitteringAroma