Step 1: The Stains
We apply 12 of the toughest, most common household stains to a brand-new piece of fabric to create a consistent challenge for every machine.
Step 2: The Benchmark
Using a scientific tool called a photospectrometer, we get a precise color reading of the stain before the wash to establish the "100% stain" level.
Step 3: The Proof
After the wash, we take a final measurement of what's left. This allows us to compare the "before" and "after" to calculate the final Stain Removal Percentage.