In Thailand, most corn farmers make soap out of ground corn.  According to Dr. Chutima Koshawatana, a researcher from the Nakhon Sawan Filed Crops Research Center in Thailand, when ground corn is mixed with other soap ingredients, the resulting product not only cleanses the body;  it also makes a good exfoliant, revealing smoother and softer skin.

You will need:

220 grams of coconut oil

20 grams of ground corn

100 grams of olive oil

2.5 grams of sesame seeds

80 gras of plam oil

25 grams of glycerin

73 grams of lye

140 grams of water

8 grams of perfume

Before you start: 
  1. Grind the flour until very fine.  Large granules can irritate the skin.
  2. Cut the sesame seeds into small pieces.
  3. Wear an apron, gloves and protective goggles when handling caustic solutions like lye.

This recipe can yield nine bars of soap, each weighing 60 grams. 

To make your corn soap:
  1. Pour the lye in water and mix well.  Set aside until the temperature of the mixture reaches 42°C.
  2. Mix the coconut, olive, and palm oils together in an enamel pot.  Heat until the temperature reaches 42°C.
  3. Slowly pour the lye solution into the oil mixture.  Make sure to maintain the temperature at 42°C.
  4. Stir for one hour until the solution becomes clear.  Add the glycerin, ground corn, and sesame seed.  Stir for 5 minutes, then add the perfume.
  5. Pour the soap into a mold.  Leave it for 6 hours or overnight.
  6. Remove the soap from the mold.