How to Remove Dried Blood Stain from Fabric

Can You Remove Dried Blood Stains?

Yes — dried blood stains are tougher than fresh ones, but they're not impossible to remove. The key is rehydrating the stain first, then using the right products to break down the dried proteins. Here's exactly how to do it.

What You'll Need

• Cold water
• Enzyme stain remover (Carbona Liquid Stain Devils)
• Hydrogen peroxide (12%)
• Microfiber cloths
• Soft-bristled brush or old toothbrush

Step-by-Step: Removing Dried Blood from Fabric

1. Scrape off any dried residue. Use the edge of a spoon or dull knife to gently lift any crusty dried blood from the surface. Don't rub — you'll push it deeper into the fibers.
2. Soak in cold water. Submerge the stained area in cold water for 30–60 minutes to rehydrate the dried blood. This makes it much easier to treat.
3. Apply enzyme cleaner. Saturate the stain with Carbona Liquid Stain Devils. Let it sit for 10–15 minutes — the enzymes will start breaking down the protein bonds.
4. Gently work it in. Use a soft brush or your fingers to work the cleaner into the fabric in circular motions.
5. Rinse with cold water. Flush thoroughly from the back of the fabric.
6. Repeat if needed. Dried stains often need 2–3 treatments. Don't give up after the first try.
7. Wash on cold cycle. Check before drying — never put in the dryer until the stain is completely gone.

For Really Stubborn Dried Blood Stains

If the enzyme cleaner alone isn't cutting it, bring in hydrogen peroxide:

1. After soaking, apply hydrogen peroxide directly to the stain.
2. Watch it fizz — this is the oxidizing reaction breaking down the dried blood.
3. Blot with a clean microfiber cloth.
4. Rinse and repeat until the stain lifts.

⚠️ Always test hydrogen peroxide on a hidden spot first — it can lighten colored fabrics.

Does Baking Soda Help with Dried Blood?

Yes! Make a paste with baking soda and cold water, apply to the stain, and let it sit for 30 minutes before rinsing. It's a good natural option, though an enzyme cleaner like Carbona Stain Devils is more powerful for set-in stains.

Frequently Asked Questions

How long can a blood stain sit before it's permanent?

Blood stains become increasingly difficult to remove after 24 hours, especially if exposed to heat. However, with the right enzyme cleaner and patience, even week-old stains can often be lifted.

Does cold water really matter?

Absolutely. Hot water cooks the blood proteins into the fabric, making the stain nearly impossible to remove. Always use cold water for blood stains.

Can I use OxiClean on dried blood?

Yes — especially on white fabrics. OxiClean White Revive is excellent for dried blood on white or light-colored items.