Greg Tucker explains his "treat them mean" approach to broccoli in a bid to extend shelf life. This video also features Gilbert Shama from Loughborough University. Visit our website at http://www.foodskey.net/ We're tweeting at http://twitter.com/#!/foodskey Foodskey films feature experts from the University of Nottingham. Foodskey films by Brady Haran. Video editing on this film by Stephen Slater.