S5 Ep2: Building a New Category Around a 2,000-Year-Old Drink

That's What I Call Marketing · Jan 20, 2026 · 47m

What happens when a radio comedian, a senior drinks marketer, and a 2,000-year-old Roman hydration recipe collide?

In this episode of That’s What I Call Marketing, Conor Byrne sits down with Merrick Watts and Ed Stening, co-founders of Posca Hydrate — a sugar-free, hypertonic hydration drink inspired by ancient Roman Posca.

Posca isn’t a nostalgia play. It’s a sugar-free, hypertonic drink inspired by a Roman solution to unsafe water — rebuilt for modern life, modern habits, and modern expectations. That means confronting everything from flavour and formulation to packaging, positioning, and…