Multi-purpose and kitchen cleaners

Performance

We test multi-purpose cleaners in a controlled lab environment. We cover tiles in a greasy soil. The cleaner is applied to a damp sponge and we use a scrub tester to clean the tile. Cleanliness is assessed by measuring the reflectance of the tile. We repeat this test four times and the results are averaged to obtain our overall score.

How we choose products to test

When deciding which cleaners to test we head straight to the supermarket, like any consumer would (we also search online if there are any popular brands we can’t find). We conduct a survey of the available products and then contact manufacturers to confirm their products aren’t about to change formula. We then head back to the stores, buy the products and then send them off to the lab.