Motorway coffee too weak for tired drivers <hr style="color: rgb(73, 120, 68);" size="1"> <!-- / icon and title --> <!-- message --> New research shows motorway service station coffee is so weak that a drowsy driver would have to drink 11 pints to ward off fatigue.
Of 25 service stations tested, not one served coffee strong enough to keep a driver awake for the recommended two hours, the motoring magazine Auto Express found. The weakest had so little caffeine you would need nearly a gallon and a half to wake yourself up, while
even the strongest, a double espresso, would take half a pint to deliver the necessary kick-start.
David Johns, the editor of Auto Express, said the research showed that government advice was "highly misleading". He explained: "There are more than 100 sizes, varieties and makes of coffee sold to hundreds of thousands of motorists every single day. The bottom line is there’s absolutely no way of telling how much caffeine you’re getting in what you buy."
Dr Louise Reyner of Loughborough Sleep Research Centre, said her experiments on a driving simulator showed that 160 milligrammes of caffeine could revitalise a dozy motorist for up to two hours. But not one of the cups of coffee bought by Auto Express at motorway service stations came anywhere near that. The strongest, from Costa Coffee at Sandbach services on the M6 in Cheshire, had less than half the necessary dose, while the same double espresso from Strensham services on the M5 had only half the caffeine of its Sandbach counterpart. Dr Reyner said: "The problem is that consumers cannot tell how much caffeine they are getting. There’s nothing written on the cup or anywhere at the point of sale, so they can’t possibly know if the coffee will have the desired effect."
Furthermore, price is not a reliable guide to caffeine levels, although the two cheapest cups, from McDonald’s and Burger King outlets, were in the bottom three for strength. An espresso from a self-service Coffee Nation machine at the Membury Welcome Break site on the M4 cost only £1.30, but it had a caffeine level 15 times higher than a £1.89 Costa Coffee latté from RoadChef’s Woodall services on the M1.
This year, the Department for Transport launched a campaign advising motorists to drink two cups of coffee every two hours on long journeys to combat fatigue, as a quarter of serious crashes are "sleep-related". Yesterday, a spokesman for the department insisted: "We are not saying coffee is a panacea. It should be seen as part of the whole package of measures, including taking a rest."
Mark Kitson, of Costa Coffee, said: "Caffeine levels can vary between coffee beans by up to 100 per cent. But we are not aiming for consistent caffeine levels - we are trying to make the best-tasting coffee each time."