How to Wash Blood Out of Clothes Without Damaging the Fabric
How to Wash Blood Out of Clothes Without Damaging the Fabric
You cut your finger while cooking and blood dripped onto your shirt. The red stain is bright and spreading. You grabbed a napkin and blotted, but the mark is still there. Blood is a protein stain, and protein stains have one critical rule: never use hot water. Hot water cooks the protein and bonds it permanently with the fabric fibers. Cold water, on the other hand, flushes out the blood before it bonds. If you act quickly and use the right method, blood stains come out easily. Here’s how.
Blood stains on clothes are marks caused by proteins in blood that bond with fabric fibers. Protein stains set permanently when exposed to heat, so cold water is essential. Fresh blood stains respond to cold water and detergent, while set-in stains may require hydrogen peroxide or enzyme treatments.
To wash blood out of clothes, rinse the stain with cold water immediately, apply liquid detergent or dish soap, let it sit for 5 minutes, then wash in cold water with an enzyme detergent. For set-in stains, use hydrogen peroxide. Never use hot water on blood stains, as heat sets the protein permanently.
Step-by-Step: Fresh Blood Stains
Step 1: Rinse with cold water. Hold the stained area under cold running water from the back of the fabric. Cold water flushes out the blood before the protein bonds with the fibers. Don’t use hot water, as heat sets blood permanently.
Step 2: Apply liquid detergent. Apply liquid detergent or Dawn Ultra Dish Soap directly to the stain. Work it in gently with your fingers.
Step 3: Let it sit for 5 minutes. The detergent needs time to break down the proteins.
Step 4: Rinse with cold water. Rinse the stained area again with cold water from the back.
Step 5: Wash in cold water. Wash the garment in cold water with an enzyme detergent like Tide Free and Gentle. Check before drying.
For Set-In Blood Stains
If the blood stain has been on the fabric for hours or has been through the wash, it needs stronger treatment.
Hydrogen peroxide. Apply 3% hydrogen peroxide directly to the stain. The peroxide breaks down the proteins in dried blood. You’ll see it bubble on contact. Let it sit for 5 minutes, then rinse with cold water and wash. Test on an inconspicuous area first, as peroxide can lighten some fabrics.
Baking soda paste. Mix Arm and Hammer Baking Soda with water to form a paste. Apply to the stain, let it sit for 30 minutes, then rinse with cold water and wash. The mild abrasion helps lift dried blood.
Meat tenderizer. Meat tenderizer contains enzymes that break down proteins. Make a paste of meat tenderizer and water, apply to the stain, let it sit for 15 minutes, then rinse with cold water and wash.
Ammonia. For stubborn stains on white or light fabrics, apply a small amount of ammonia with a cotton ball. Let it sit for 5 minutes, then rinse with cold water and wash. Don’t use ammonia on wool or silk.
OxiClean Max Force Spray. OxiClean Max Force Spray contains enzymes that break down proteins. Spray the stain, let it sit for 10 minutes, then wash in cold water with enzyme detergent.
Blood on Different Fabrics
| Fabric | Fresh Blood | Set-In Blood | What to Avoid |
|---|---|---|---|
| Cotton | Cold water + detergent | Hydrogen peroxide, OxiClean | Hot water |
| Polyester | Cold water + detergent | Hydrogen peroxide, OxiClean | Hot water |
| Denim | Cold water + detergent | Hydrogen peroxide, baking soda | Hot water |
| Wool | Cold water + detergent (gentle) | Professional cleaning | Hot water, ammonia, peroxide |
| Silk | Cold water + detergent (gentle) | Professional cleaning | Hot water, ammonia, peroxide, OxiClean |
What Not to Do
Never use hot water on blood stains. Hot water cooks the protein and bonds it permanently with the fabric. Always use cold water for blood stains.
Don’t rub. Rubbing spreads the blood and pushes it deeper into the fibers. Blot gently.
Don’t put the garment in the dryer. Dryer heat sets blood stains permanently. Always air dry and check first.
Don’t use chlorine bleach on colored fabrics. Chlorine bleach strips color. Use oxygen bleach or hydrogen peroxide for colored fabrics.
Don’t use ammonia on wool or silk. Ammonia damages protein fibers like wool and silk.
Don’t wait. The longer blood sits, the harder it is to remove. Treat within minutes.
FAQ
How do you wash blood out of clothes? Rinse with cold water immediately, apply liquid detergent, let it sit for 5 minutes, then wash in cold water with an enzyme detergent. For set-in stains, use hydrogen peroxide or OxiClean. Never use hot water.
Does cold water remove blood from clothes? Yes. Cold water flushes out blood before the protein bonds with the fabric fibers. Hot water cooks the protein and sets the stain permanently. Always use cold water for blood stains.
Does hot water set blood stains? Yes. Hot water cooks the protein in blood, bonding it permanently with the fabric fibers. Never use hot water on blood stains. Always use cold water.
How do you remove dried blood from clothes? Apply 3% hydrogen peroxide to the stain, let it sit for 5 minutes, then rinse with cold water and wash with enzyme detergent. You can also use a baking soda paste or OxiClean Max Force Spray.
Does hydrogen peroxide remove blood stains? Yes. Hydrogen peroxide breaks down the proteins in dried blood. Apply 3% hydrogen peroxide to the stain, let it bubble for 5 minutes, then rinse with cold water. Test on an inconspicuous area first, as peroxide can lighten some fabrics.
Can you put blood-stained clothes in the dryer? Don’t put blood-stained clothes in the dryer until the stain is completely gone. Dryer heat sets blood stains permanently. Always air dry and check first.
References
- Tide. “How to Remove Blood Stains from Clothes.” tide.com.
- The Spruce. “How to Remove Blood Stains.” thespruce.com.
- Good Housekeeping. “How to Get Blood Out of Clothes.” goodhousekeeping.com.
- OxiClean. “Blood Stain Removal Guide.” oxiclean.com.
