IBA spec
Longer
Alcohol-free
ml
oz
Vodka (40%):
Ginger beer:
Lime juice:
Strength
Alcohol units (UK)
Vodka : ginger beer
Drag the sliders. Strength is worked out as vodka at 40% over the total liquid, before any ice melts, so the real drink gets a little weaker as you sip. One UK unit is 10 ml of pure alcohol.