According to the requirements of the Drinking Water Ordinance (TrinkwV 2001), water used in a company for the production, processing, preservation or placement on the market of food must meet the general requirements for drinking water. The company owner must ensure that there is no adverse effect on the water in the company's pipeline network. Regulation (EC) No. 852/2004 also requires water of drinking water quality when used as an ingredient and for cleaning and disinfection.