What You Need to Know
The drink relies on density stratification (ρ_whipped cream = 0.5 g/cm³ vs ρ_rum = 0.79 g/cm³) and thermal convection inhibition. Ethanol (40-54% in rum) forms hydrogen bonds with coffee compounds like chlorogenic acids.
Served unmixed as a social challenge, with consumption requiring careful sipping to avoid the rum layer until intended.
Key Parameters
Temperature
80°C
0°C - 90°C
Time
3 minutes
2 minutes - 5 minutes
Equipment
Coffee makerWhipped cream dispenserRum bottleCoffee cupsSpoon
Steps
- 1.
Nordfriesland Challenge (Traditional drinking game): Social bonding through controlled risk
The Science
Primary Reaction
Ethanol-polyphenol complexation