A paragraph in this article expresses very well the urban farming concept of the Blue Finger:
“The basic business concept for an urban farmer is simple: Grow local food in the city, avoid middlemen and transportation distances, and exploit higher margins by selling directly to customers. The farmer avoids the hugely complex, costly, and polluting distribution and refrigeration system through which city food otherwise travels. Therefore, the farmer also enjoys a competitive advantage in delivering truly fresh, tasty, and nutrient-rich food to customers’ doorsteps. Urban farming also helps cut way back on food waste — which currently represents about one-third of all food produced worldwide, reports the United Nations’ Think.Eat.Save program — through smaller and more direct delivery from harvest to plate.” -Roman Gaus.
Read on by clicking on the link above.