Ada Ferri 1., Miquel Osset 2., Konstadinos Abeliotis 3., Caroline Amberg 4., Cevza Candan 5., Jeremy Owens 6. and Rainer Stamminger 7. To identify key features in the perception of consumer satisfaction of washing performance, a survey among detergent users from five European countries was run. Respondents from each country were volunteers recruited through…