This high tech solution to egg boiling will shortly be coming to a supermarket near you. No, the chickens haven't got cleverer, it's all down to a temperature sensitive thermochromic ink that will be printed onto the shells of Lion Quality eggs. At first the ink will be invisible then it will colour on boiling to indicate soft, medium or hard boiled eggs. Of course, you could do what we have been doing forever - use a timer! [Via BBC]
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