Watching the racing is thirsty work but it's a lot more fun when you pour your own refreshing pint of Guinness. For the first time ever, Aintree has a 'Do-It-Yourself' Guinness station for ...

But just in time for St Patrick's Day, experts have revealed that the traditional time gap between the two-part pour – 119.5 seconds, according to Guinness – may not be long enough.