You will get dirty hands if you pick up ashes. You will also get dirty hands if you pickup ashes from a fire after it has cooled down. You will also get dirty hands if you touch some grease from left-over cooked meat. But you will get clean hands if you take some water and mix it with this ashes and that grease,and rub it on your dirty hands. There is reason behind this phenomenon. You have combined the ingredients people have been using for over 2000 years to make soap. Today animal fats or vegetable oils are used for soap-making.The vagitable oils are used for soap-making. The vegetable oil are used for soap-making.The vegetable oil may be coconut or olive oil. Chemical called alkalis are mixed with the fats or oils and heated in huge kettles. These kettles may be three stories high. The heating forms creamy soap.Then salt is added.The makes the soap float to the top. After that the soap is put into a huge mixture. It is churned untill it becomes smooth. Colouring,germ,killers and perfumes are Added to it. The smooth mass is squeezed through a machine. A long bar is formed.It is cut into small bars.The manufacturer's name is stamped on them. This is the way soap is made.