Having been aged for around 3,200 years, the world’s oldest solid cheese has been discovered in Egypt.Dr Enrico Greco and his colleagues of the University of Catania, in Italy, tested a mass – originally thought to be soap which was found in a tomb in ancient in Egypt in 2010 by a team of researchers from Cairo University – and found that it was cheese made from a mixture of several animal milks, including sheep, cow and water-buffalo.