Blood often leaves the body in unexpected ways, like when you accidentally grate your knuckles instead of a carrot. Hopefully the injury is minor, and the worst outcome is a blood stain. You can find plenty of advice online about how to remove blood from various types of fabric, but we decided to perform some actual tests. Taking a cue from Carrie, we got our hands on a couple of tubs of pig blood—a close approximation to human blood in terms of coagulation and red-blood-cell size—and applied drops to swatches of common fabrics used in clothing and bedding. We learned that most fresh blood stains vanish with cold water and inexpensive household cleaning products, and that acting fast is a crucial part of the process.
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