Lipton is reporting hefty sales and distribution increases of its ice tea following its summer sampling push Don't Knock It Until You've Tried It.

The campaign gave out one million free samples at universities and multiples between June and August.

Co-owners Unilever and PepsiCo said Sainsbury's decided to stock the peach flavour from July while Tesco said stocking the range in its upmarket and metropolitan stores had proved such a success it was now rolling it out into Express outlets.

Sales for August 2010 were up 56% year on-year, said Lipton.