Another mad washing machine question

On most machines, just cold water. Ideal for removing caked on mud (eg football jerseys)

Yes, should be cold, which will also help remove some types of organic soiling which can be cooked on before they get cleaned, such as some proteins (although modern washing machines are all profiled temperature washes, starting off below 35C to achieve this even on high temperature washes).

Its amazing to me how we have got to this washing program place. When I was young we had a twin tub and it all seemed to be easy, obviously more manual work was involved to some extent, but I do not remember the clothing coming out any less clean than now. Is this all a lot of hype to sell more different washing products at higher prices and to make machines far more complicated? Brian

It is the reason why all new machines are cold fill. In days of yore, most machines filled with both hot and cold water.

The reason is that its cheaper and they don't use anything like as much hot water.

Hot and Cold fill washing machines had bio cycles which kept the temp down anyway.

Expense comes into it. But all washing benefits from a start incold water. Stains are not set in by being dunked with hot water.

As I said above H&C fill doesn't mean you always fill with H.