Emma Barnett: ‘I’m surprised I can eat a full breakfast at 4.40am’ The BBC Radio 4 Today presenter, 40, on that first cup of tea, becoming a stealth napper and relaxing to Gladiators Save ...

Whether it's chocolate that has developed a whitish bloom or bread that has gone slightly mouldy, it's confusing whether something is OK to eat or drink or whether it needs to be binned.