
White overproof rum is a clear, unaged cane spirit bottled far above standard strength, typically 55–75% ABV, and usually at or past the historic 57.15% navy proof point.
Strength and clarity are doing the work together, and strength is the half nothing else supplies. The flavor is easy to match; without the proof neither a float over a tiki drink nor a flame will happen at all.
Standard white rum sits at 37.5–40% against 55–75%. In a Zombie, or floated on top of a tiki drink, it simply vanishes: a 7–8 ml accent has no strength to carry it, and it will not flame at all.
Navy strength is the 57% mark, the low end of the same ground. In the glass the difference is small: swap measure for measure, and only with the strongest bottlings (70% and up) pull back about a quarter.

Rum Old Fashioned
Caribbean aged rum

Reggae Rum Punch
White overproof rum

Caribbean Punch
White overproof rum

Coconut Rum Punch
White overproof rum

Mango Punch
White overproof rum

Passion Fruit Rum Punch
White overproof rum, Dry sparkling wine

Rumshack Punch
Navy rum

Green Swizzle
White rum

Sharks Tooth (Trader Vic’s)
White overproof rum

Illegal – IBA
Mezcal