What drink has the most alcohol per serving?

We all know that spirits contain the most alcohol, around 40% or above, but we only drink a shot. A pint of beer contains less alcohol, but we drink more of it, so i wanted to see what drink contained the most per standard serving!

Shot of vodka: 35ml x 40% = 14ml ethanol Pint of Guinness: 568ml x 4.2% = 23.8 ml ethanol Small Buzzball: 200ml x 13.5% = 27 ml ethanol Wine: 250ml x 12% = 30ml ethanol Four Loko: 440ml x 8.4% = 37ml ethanol

What ‘standard serving’ of drink actually contains the most amount of ethanol? Can you guys think of any others that are high?