State of Play is a 100% non-alcoholic brewery - part of a growing movement looking at how we drink, and providing options for healthier relationship with booze. Founder Grant Caunter spent 25 years building beer brands and growing the craft movement, before quitting drinking, losing 45kg and getting a new take on life. He talks to Simon Pound about what it takes to make a great "zero", and how you build a brand in a new category from a standing start.

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