How to Remove Blood Stains Without Setting Them
By TaVare · updated 2026-07-27
Blood is protein, and protein sets in heat. So the most important rule with blood stains is: cold water only. With quick action and the right method, most fresh blood stains come out. Here is how.
Rule number one: cold water only
Hot water, a hot wash and the tumble dryer 'cook' the blood protein into the fibres, and then the stain is almost impossible to get out. Use only cold water on blood – until the stain is gone.
Fresh stains – step by step
The faster you are, the more easily the stain comes out.
- Rinse the stain in cold water straight away, ideally from the back.
- Apply a little liquid detergent or soap and rub gently.
- Let an enzyme detergent work as a soak – enzymes break down protein.
- Wash at a low temperature, and check the stain is out before you dry.
Old, dried-in blood stains
An old blood stain needs more time: soak in cold water with enzyme detergent, and repeat. On white and colourfast fabric a little hydrogen peroxide can help – always test on a hidden spot first. Be patient and avoid heat throughout.
Delicate fabrics: wool, silk and 'dry clean only'
On wool, silk and garments labelled for cleaning you should not rub or use strong products. Blot gently, keep the stain damp and bring the garment in. We clean according to the fabric and care label, and you see the price before you order.
Frequently asked questions
Why must I use cold water on blood?+
Blood is protein, and heat sets it permanently into the fabric. Cold water keeps the stain loose so it can be removed.
Can old blood stains be removed?+
Often, with a long soak in cold water and enzyme detergent. Well-set stains on delicate fabric are safest cleaned professionally.
Does enzyme detergent help against blood?+
Yes. Enzymes break down the protein – soak, then wash cold.
What about blood on wool or silk?+
Do not rub. Professional cleaning is safest on delicate fabrics.
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