By Martin Wainwright
The struggle to produce the world's best beans on toast has entered a new phase with the first ready-made sandwich version, which is designed to be cooked in a toaster for about 60 seconds.
Trials of the frozen product will be held this year in New Zealand before it is launched next year in Britain, where 1.5m cans of baked beans are bought every day.
The invention features a wodge of beans sealed in their frozen sauce between two slices of bread. It has been designed by HJ Heinz in the face of increasing competition to its 130-year domination of the market.