Written The kitchen sink contains 100,000 times more germs than the bathroom and toilet, a newspaper has claimed.According to the Irish Independent, continuing to use a kitchen sink sponge without regularly replacing it can lead to E.coli and salmonella outbreaks.It can contain thousands of bacteria per square inch, which could be spread about the kitchen sink, cutlery and plates when washing up.Germs may also be spread around kitchen surfaces if a dirty sponge is used to clean.To make a kitchen as clean as possible, frequently washing hands in the kitchen sink could help.Hand-washing lowers the transmission of diarrhoea and colds and targeted disinfection at critical sites reduces the spread of infection in the home, the newspaper stated.Writing for Examiner.com, Shirley Wilson said that white vinegar is a cheap and green kitchen sink cleaner which kills 99 per cent of bacteria and 82 per cent of mould.