More than 100,000 consumers will be given the opportunity to road test sweet potatoes as part of the travelling road show.
Tasters will be given a McCain coupon book including three 50p coupons.
A competition, where entrants describe their perfect dinner party with a prize of a celebrity chef cooked dinner awarded to the best, will also be launched.
RT @NFUtweets: Now you've got your #gcseresults is agriculture for you? We love farming @studentfarmer Check out this great poster! http://…