how to remove dried blood stain
1 The following common household items can be used to remove blood stains: baking soda, white, unseasoned meat tenderizer, salt, or hydrogen peroxide along with cold water. 2  For baking soda and meat tenderizer, make a paste using cold water and apply to the stain. 3  Let it set for 15-30 minutes and rinse with cold water. If the stain is still present, you can try soaking it overnight in cold water. 2  If that doesnât work, proceed to the next step. 3  Make a saline solution from 1 cup of salt with 2 quarts water. 4  Let the stain soak in the solution for 30 minutes.