> a normal mug of ~500ml

woa where is half a liter of coffee a "normal" portion?

500mL is a pretty typical size for a travel mug/tumblr. I'd consider that two or three servings though.

	▲	sph a day ago \| parent [-]
		500mL of Americano (diluted coffee) is not 500mL of espresso. I challenge you to drink half a litre of espresso in one sitting.