Step 1 : Scrape and remove excessive stain using a blunt spatula or spoon. Never use a knife because it might harm the fibers.

Step 2 : Mix half a teaspoon of an enzyme detergent with one cup of cold water. Apply it to the stain and leave for 5-10 minutes for best results. Rinse with warm water. You may have to rinse it several times to completely remove the residues. Do not use warm or hot water as it may set the stain

Step 3 : Mix two tablespoons of household ammonia in one cup of water. Apply it to the stain and leave it for less than a minute. Blot using soft, absorbent, white material such as paper towel or napkin.

Step 4 : Mix half a teaspoon of an enzyme detergent with one cup of cold water. Apply it to the stain and leave for 5-10 minutes for best results. Rinse with warm water. You may have to rinse it several times to completely remove the residues. Do not use warm or hot water as it may set the stain

Step 5 : Apply rust remover or oxalic acid solution and blot using soft, absorbent, white material such as paper towel or napkin.

Step 6 : Apply a small amount of 3% hydrogen peroxide (commonly available in the drug or grocery stores) and leave it for 2-5 minutes. Blot using soft, absorbent, white material such as paper towel or napkin.