Southern TropicvsCentennial

Southern Tropic (bittering) and Centennial (dual purpose) serve different purposes. Comparing acids, aromas and character helps pick the right hop.

Southern Tropic

Bittering

Alpha acid

12.6–18.1%

Beta acid

5–6.5%

Total oil

-

South Africa

Centennial

Dual purpose

Alpha acid

7–12%

Beta acid

3.5–5.5%

Total oil

1–3 mL

United States

Key differences

When to pick Southern Tropic

  • Higher alpha acid - stronger bittering
  • Higher beta acid - smoother, longer-lasting bitterness
  • Bittering workhorse - efficient in the mash
  • Richer, more complex aroma profile

When to pick Centennial

  • More myrcene - pronounced citrus and resinous notes
  • Versatile - works for both bittering and aroma

Aroma profile and use

Shared aromas

Citrus

Only in Southern Tropic

MelonTroicalGuavaButterscotchLemongrassCoconutPungentPineappleBubblegum

Only in Centennial

PineFloralGrapefruitTangerine

Property

PropertySouthern TropicCentennial
Alpha acid12.6–18.1%7–12%
Beta acid5–6.5%3.5–5.5%
Co-humulone26–30%23–30%
Total oil-1–3 mL
Myrcene19–46%55–65%
Humulene14–40%10–20%
Caryophyllene6–14%5–7%
Farnesene8–11%0–1%
OriginSouth AfricaUnited States
PurposeBitteringDual purpose

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