This is my deep dive into how I test the performance of laundry detergents! I know it’s a bit boring and dense but I hope it provides some clarity of my process. This is the short version of what: 1) I buy white cotton in bulk and create 1’x’1’ cotton swatches 2) The swatches are stained with 18 unique stains which represent the 5 stain categories 3) The stained swatches air dried and the color is measured before testing 4) The stained swatches pinned to a microfiber cloth so they dont bunch 5)

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