A few years back I got a new washing machine. After a few weeks of use a light came on that simply said "Hygiene". I had no idea what this meant so looked in th

A few years back I got a new washing machine. After a few weeks of use a light came on that simply said "Hygiene". I had no idea what this meant so looked in the manual. It turns out that the washing machine expects to have a 90 degree C cycle every so often so it kills all the germs inside. This was a feature that my previous machine didn't have.