On a cold October’s day in 2018, Shane Cole sighed. Barely any customers had braved the torrential rain to visit his street food trailer in Letchworth, Hertfordshire and he had a huge pile of meals leftover.
On a napkin, he totalled his losses for the day – which came to £860. On the other side of the napkin, he wrote down something very different.
‘I’d been about to throw my food away...