Ozone is attracting more and more attention in wide areas of applications, especially in food and food processing. For decades, huge amounts of chlorine compounds like sodium hypochlorite have been used for disinfection in food processing. However, its long term use has caused the new problem of the appearance of drug-resistant microbes. Also, consumers want to have natural foods, without additives, free from pollution and disinfectant odor. Ozone is, in contrast to chlorine compounds, one of the oldest chemicals on the earth. It kills viruses and bacteria the same as chlorine and reverts back to oxygen leaving no chemicals behind. Furthermore, it produces no drug-resistant microbes. In this report, the use of highly concentrated ozonated water is introduced with an explanation of its marvelous effects and advanced technology.