Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and protozoa. , physiology, cell biology, ecology, evolution. Therefore Microbiology, found in everyday life has many aspects. For example, food microbiology, but there will be more food contamination because of contamination in food is nearby, we know that each day we need to eat food to live and to eat the food we don't know it there are microbial contamination, and certain foods can not see germs with the naked eye, but there are also some that are visible to the naked eye was black mold on bread. The mold of rotten fruit. fermentation is one of the methods to preserve food Yeast, especially Saccharomyces cerevisiae, is used to leaven bread, brew beer and make wine. Certain bacteria, including lactic acid bacteria, are used to make yogurt, cheese, pickles. However, the food is both beneficial and harmful microbes. Useful microorganisms are used to produce food or drink. The microorganism is blamed It is found in contaminated and grown on foods or beverages that cause food spoilage and food poisoning.