WillamettevsAhtanum

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

Willamette

Dual purpose

Alpha acid

4–7.2%

Beta acid

3–4.5%

Total oil

0.6–1.6 mL

United States

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 Willamette

  • Versatile - works for both bittering and aroma

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

Aroma profile and use

Shared aromas

CitrusFloral

Only in Willamette

IncenseElderberryCaramelCurry

Only in Ahtanum

GrapefruitGeraniumPineEarthyCedarLemon

Property

PropertyWillametteAhtanum
Alpha acid4–7.2%3.5–6.5%
Beta acid3–4.5%4–6.5%
Co-humulone28–35%30–35%
Total oil0.6–1.6 mL0.5–1.7 mL
Myrcene30–40%45–55%
Humulene20–27%15–22%
Caryophyllene7–8%9–12%
Farnesene5–6%0–1%
OriginUnited StatesUnited States
PurposeDual purposeAroma

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