Cleaning is the process of removing waste from surface using cleaning agent or rinsing by water,
cleaning process can reduce the quantity of microbes slightly.
On the other sanitizing is the process of reducing microorganism to a safe lv. A safe level is defined as 99.99% reduction of the number of disease microorganisms that are of public health importance. Sanitizing is accomplished by using heat, radiation or chemicals (แรดิเอชั่น )