Investing your way to an early retirement is not an unusual story in the wealth management industry. But, buying whisky to do so certainly is.

Roger Parfitt, a 59-year-old bank manager and father-of-two from Coventry, has done just that.

He decided to invest £4,700 in whisky in 1994.

Twenty-seven years ago he spent £3,200 and £1,500 on a Macallan and Tobermory cask respectively.

This year, Mr Parfitt signed a sale agreement for £225,000 – a 4,6...