In Shoreditch on Saturday, I stumbled across Penny University – the latest in pop up to hit London. The cute space has a reclaimed wood counter with just six stools is a PR vehicle for the Square Mile Coffee Roasters Company, which aims to show that with a bit of care, it’s easy to make good-quality filter coffee at home. Once you sit down, a member of staff will talk you through the brief menu, which offers three changing coffee varieties and a ‘flight’ that matches the daily brews with William Curley chocolates and a sommelier-style commentary. A few words of advice – don’t ask for milk or sugar!