Percol is launching caffeine-laden coffee and tea bags under its Rocket Fuel banner. Rocket Fuel Ground Coffee ­ made from Arabica beans ­ and Tea Bags reach shelves this week. They are aimed at daytime stimulation and, like last month's new arrival All Day Stimulation Drink, contain guarana, traditionally used by Amazonian Indians as a stimulant. The products are in colourful, stay-fresh, zippable pouches designed to attract younger consumers. Rsp: £1.29, 50g (20 tea bags); £1.49, 125g coffee. {{MARKETING - P&P }}