Von Mandl is very confident that the White Claw craze isn't just a passing fad.

"The consumers flocking to White Claw today are not going to magically return to the mega-beer brands of yesterday," von Mandl said at a beer wholesalers convention in September, Bloomberg reported.

Von Mandl also estimated that White Claw will make Mark Anthony Group "close to $4 billion" in revenue in 2020, according to Bloomberg.