Don't waste your money on a dud detergent. We put them to the test on 6 stains, including egg yolk and baked-on cheese.
Overall score breakdown
Overall score is the average of 6 scores for stain removal:
About our test
We test in a controlled lab environment using plates that are pre-stained. We get the plates from the same company that supplies consumer organisations and dishwasher manufacturers globally.
We set the dishwasher to a standard cycle at 60°C and test each detergent 4 times. To see how well the detergents have cleaned the plates, we measure the reflectance with a spectrophotometer before and after cleaning.
Why is this free?
We’re dedicated to getting NZ consumers a fairer deal. We provide as much information as we can for free but we rely primarily on membership and donations to fund our work. You can help by becoming a Consumer member or making a donation. We’ll use your contribution to investigate consumer issues and work for positive change.