Beverage companies are working hard to win over Gen Z consumers—though they’ve certainly been perplexing brands with their preferences. Unlike Millennials, who indulged in soda and juice at young ages, Gen Z grew up hearing all about the dangers of sugary drinks and bringing their water bottles with them everywhere, and soda brands have struggled as a result. Because they’ve been raised during an era of heightened health-awareness, alternative beverage brands have had their moments in the spotlight, from La Croix to SodaStream. More recently, a new class of sodas like Olipop and Poppi have been on the rise, tapping...