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.
.#PLMAInternational2016: Gender-blurring is one of the main consumer trends as seen by @Euromonitor https://t.co/KM64lRuZLR
.@PLMAInternational2016: #PrivateLabel evolution in Europe remains stable, according to J-J Vandenheede @Nielsen https://t.co/q8hixnFttD