HydravsZappa

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

Hydra

Dual purpose

Alpha acid

10.5–13.7%

Beta acid

6.4–7.9%

Total oil

-

United States

Zappa

Aroma

Alpha acid

6–9%

Beta acid

8–9%

Total oil

1.8–2.5 mL

United States

Key differences

When to pick Hydra

  • Higher alpha acid - stronger bittering
  • Versatile - works for both bittering and aroma
  • Richer, more complex aroma profile

When to pick Zappa

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

Aroma profile and use

Shared aromas

CitrusTropical

Only in Hydra

TangerineMandarinZestResinLimeBerryPeachWatermelonRoseApricot

Only in Zappa

MintSavoryFruityMangoPassion fruitPineSpicyFresh

Property

PropertyHydraZappa
Alpha acid10.5–13.7%6–9%
Beta acid6.4–7.9%8–9%
Co-humulone27–28%40–45%
Total oil-1.8–2.5 mL
Myrcene54–55%64–65%
Humulene11–12%4–5%
Caryophyllene8–9%8–9%
Farnesene0–1%0–1%
OriginUnited StatesUnited States
PurposeDual purposeAroma