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Updated: 31 Mar 2022

Best and worst washing-up liquids

We round up the full results of our tough washing-up liquid tests. Find out which washing-up liquid will help make your household chores easier.
Patrick Gallagher
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Our washing-up liquid tests separate the best washing-up liquids from the products you should leave on the shelf. 

The Best Buy washing-up liquids revealed by our latest tests are outstanding at removing fatty foods and baked-on grease, meaning they will help you get through the dishes faster. 

We’ve tested washing-up liquids from big brands Fairy Liquid and Ecover, plus supermarket products from Aldi, Lidl, Morrisons and Tesco. 

Thanks to our tough tests, we've discovered which washing-up liquids make short work of even the grimiest pots and pans. So you can use our results to help you cut down on elbow grease.  

The table below is currently locked. Once you're logged in, it reveals full scores and ratings for all the washing-up liquids we've tested, from best to worst. 

The best washing-up liquids can wash two-and-a-half times the number of dirty plates as the worst (per 100ml). 

The most expensive washing-up liquids aren’t always the best, so we’ve calculated the cost per 100ml so you can easily compare prices.

Washing-up liquid test results

Which? members should log in to unlock the table below. If you’re not yet a member, join Which? to get instant access to our results and all the reviews on our website.

ProductPriceBottle size (ml)Cost per 100mlFat removing powerTough grease removalFoam durationScore
90%
84%
84%
83%
67%
53%
46%