Thought some of you would be interested - I work at Which?, and we've just tested Ariel Excel (the new laundry detergent in a gel format). It claims to give brilliant results at 15 degrees, but as few washing machines can wash at that temperature we tested it at 30 degrees. It performed better than all the other laundry detergents we've tested, even though we usually test at 40 degrees. It washed out stains such as chocolate ice-cream and bolognese sauce easily, and was outstanding on whites and bright colours.
Lots of retailers have been encouraging people to wash clothes at 30 degrees, because it saves energy and money (about £8 - £18 a year for a family) and reduces colour fade. And now it looks like you can get your clothes properly clean too, which is good news! Results for all the laundry detergents we've tested are on our website - www.which.co.uk/reviews-ns/laundry-liquid/index.jsp
Nicola Frame
Which? magazine