DeltavsRakau

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

Delta

Aroma

Alpha acid

5.5–7%

Beta acid

5.5–7%

Total oil

0.5–1.1 mL

United States

Rakau

Dual purpose

Alpha acid

9–12%

Beta acid

5–6%

Total oil

1.8–2.2 mL

New Zealand

Key differences

When to pick Delta

  • Aroma-focused - ideal for dry hopping

When to pick Rakau

  • Higher alpha acid - stronger bittering
  • More essential oils - more intense aroma
  • More myrcene - pronounced citrus and resinous notes
  • Versatile - works for both bittering and aroma
  • Richer, more complex aroma profile

Aroma profile and use

No shared aromas - the varieties have divergent profiles.

Only in Delta

CitrusMelonSpicy

Only in Rakau

Stone fruitFigFruityApricotPineResin

Property

PropertyDeltaRakau
Alpha acid5.5–7%9–12%
Beta acid5.5–7%5–6%
Co-humulone22–24%23–25%
Total oil0.5–1.1 mL1.8–2.2 mL
Myrcene25–40%55–57%
Humulene25–35%16–17%
Caryophyllene9–15%5–6%
Farnesene0–1%4–5%
OriginUnited StatesNew Zealand
PurposeAromaDual purpose

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