The sheets in our hotel are often stained with blood, but the waiter didn't find them and sent them to the laundry room for cleaning because we used hot water to clean them.

When it is just polluted, it should be washed immediately with cold water or light salt water (hot water is forbidden, because the blood contains protein, which will solidify when heated and will not dissolve easily), then washed with soap or 10% potassium iodide solution, or wiped with a cloth stained with detergent or hydrogen peroxide after the blood becomes weak. If it is difficult to remove blood stains, you can use decontamination soap bubbles for one night and then wash them the next day, which is better.

White radish juice or mashed carrots mixed with salt can remove blood from clothes.

Wipe the contaminated part with 10% tartaric acid solution, and then rinse it with cold water.

It is very effective to remove blood stains with enzyme washing powder.

If the pollution lasts for a long time, 10% ammonia water or 3% hydrogen peroxide can be used to wipe the contaminated part. You can wash it in cold water in a moment. If it still can't be cleaned, clean it with 10- 15% oxalic acid solution, and finally rinse it with clear water.

Whether it is new or old, it can be cleaned with sulfur soap.

Blood stains on silk and wool fabrics can be soaked in cold water or dilute ammonia water first, then washed with soap solution and rinsed with water. If there is residue, it can be treated with protease, then washed with soap and finally washed with water. Other fabrics stained with blood can be washed with cold water or soapy wine semen. If there are residual stains, you can first drop a few drops of hydrogen peroxide on the blood stains, then wash them off with soap and wine semen, and finally rinse them off with clear water.