THERE’S A LITTLE POP BOTTOM HERE. COFFEE POPS RIGHT OUT. YOU ADD SOME HOT WATER. GIVE IT A STIR. AND IT’S LIKE MAKING INSTANT COFFEE. BUT IT TASTES LIKE A FRESHLY BREWED POUR OVER FROM A BARISTA.

Young people looking to save money on their increasingly expensive morning caffeine habit are turning to a throwback: instant coffee. Sales of instant coffee rose 24% last year from two years ...