radio frequency identification tags

Pretend you’re an inspector for the Hawaiian Department of Agriculture and you’ve just arrived to examine several pallets full of produce — bagged spinach, for example. 

You know that the ideal temperature for transporting spinach, a particularly fragile green, is 32° F. You also know this spinach has been sitting in a Honolulu warehouse for …

On today’s grocery shelves, it’s commonplace for produce from all over the world to be displayed side by side, regardless of the season.  It’s not unusual, in fact it’s expected, to see lettuce or tomatoes from California in New England grocery stores even as the snow begins to fall.

With produce traveling further than ever …