The theme of the evening was clean cookstoves. Indoor air pollution is a little-recognised problem yet every year 4.3 million die from conditions resulting from cooking over smoky fires and inefficient cookstoves. Insulated, efficient cookstoves like the ones made by Greenway Appliancesand Burn Manufacturing are less polluting and require significantly less firewood than open fires. Broadcaster and ‘Gastronaut’ Stefan Gates got leading London chefs Sam Clark and Ben Tish to try their hand at cooking on the Ashden Award-winning stoves, and Kenyan chef Susan Kamau made a special trip from Nairobi to show us how it’s done over there.