Picnics and outdoor meals are a classic theme in British food. Afternoon tea in the garden on a golden afternoon in late summer, a packed lunch consumed on a hilltop while the eyes feast on a magnificent view, and the tantalising smell of grilling from a barbecue are all part of this. Being outside sharpens the senses and the appetite, refreshes the soul and gives different perspectives - and National Trust properties provide a wealth of different environments in which to enjoy food outdoors.