Well said it all in the title really.
I use a tablespoon of washing soda (hard water area) and a bit of fabric conditioner and no powder and there is no difference at all. The washing is all clean.
Have we been had all these years by the washing powder / liquid / etc people ? Is it a huge scandal that needs exposing ?
My children are not babies so we don't have lots of food on clothes but we have mud and usual dirt and I use a 40 or 60 wash.
Hmm will continue the experiment.