Sometimes I think scientists have a little too much time on their hands, particularly when I see articles like this. A team of researchers have tested 2,000 slices of bread in an effort to make the perfect toast. They found that it takes exactly 216 seconds to cook the perfect toast. It should be an optimum thickness of 14mm and have 0.44 grams of butter per square inch. This cooking time gives it the perfect golden brown colour and the ultimate balance of crunch and internal softness apparently, with the outside being 12 times crunchier than the middle. The best result is achieved by setting the toaster dial to five out of six on a typical 900 watt toaster which produces a temperature of 154 degrees Celsius.