Up to 40 percent of food is wasted on its way from the farm to your mouth. These companies are trying to change that.

By Michael Blanding for The Engine
Illustrations by Andrés Rodríguez

Cambridge Crops CEO Adam Behrens unzips a blue cloth and pulls it away from a rack of shelves. Sitting neatly in rows are a dozen or so avocados, with small Post-It Notes indicating the date that they were…