How to Clean Blood Off of a Leather Jacket 
The best way to clean blood off of a leather jacket is to first remove the excess blood. To do this, apply a cloth made of highly absorbent material. Avoid rubbing the blood stain, as this will force more blood into the leather. Afterwards, wipe the stain with a clean cloth.
Ammonium hydroxide
Ammonium hydroxide is an effective solvent that can remove blood stains. It works by soaking the fabric in a solution of ammonia and water. The cloth should then be blotted until the stain disappears. Then, wash the garment in cold water to remove the ammonia odor. Ammonia is harmful to sensitive fabrics so use caution when using it.
Another common solution for removing blood stains is hydrogen peroxide. This mild bleach works well against stains caused by blood, urine, and perspiration. While hydrogen peroxide is generally safe to use on fabrics, it is always best to test a small amount on the clothing before using it. Once the cloth is clean, you can wash it with your regular clothes.
Meat tenderizer
To clean blood off leather jackets and other clothing that has been stained with blood, you can use a meat tenderizer. This product contains enzymes that break down the proteins in blood, making it a great choice for tougher fabrics. However, it should be noted that meat tenderizers are not recommended for delicate fabrics, including silk, linen, and wool.
The first step in removing blood stains is to mix a little meat tenderizer with cold water to make a paste. Then, apply the paste to the stain and leave it to sit for 30 minutes. After the paste has dried, rinse it thoroughly with cold water.
Bleach
Using hydrogen peroxide to clean a blood stain is a safe, effective way to remove blood from leather. Apply the solution to the stain using a wet paper towel and allow it to sit for 15 minutes. Afterward, wipe it dry with a clean paper towel.
Hydrogen peroxide is a cheap solution for cleaning leather that foams up when it reacts with mold. This foaming action helps to lift the mold off the textile. However, you should be aware of the bleaching potential of hydrogen peroxide. It is best to use an over-the-counter type, which has the lowest risk of bleaching. If you must use a laboratory-grade or janitorial-grade version, you’re likely to bleach the leather. Moreover, it is advisable to wear chemical-resistant gloves when applying hydrogen peroxide.
Before you begin applying any cleaning solution, test a small portion of the leather to check whether it causes discoloration or damage. If it doesn’t, you can try another solution. You can also use a solution that contains hydrogen peroxide or rubbing alcohol.
Saddle soap
Saddle soap is an effective way to remove blood and other stains from your leather jacket. The best saddle soaps contain all-natural ingredients. Choose one that matches the color of your leather. White soap is recommended for light-colored leather, while yellow soap works for darker leather. Both types of soaps have the ability to remove stains, but white soap may cause the leather to slightly decolor.
You can purchase saddle soap at a hardware store or grocery store. Before you use it on your jacket, however, it is best to test it first on an inconspicuous part of the leather. This way, you’ll know whether it will work or damage the leather.
