It is essential that all food preparation surfaces are free of bacteria and kitchens/bar areas are as clean as they can possibly be to reduce the risk of an outbreak of food poisoning bacteria. Detergents are supplied to use with hot water to remove grease and dirt from equipment or surfaces. The use of disinfectants reduces bacteria to safe levels and it is important to check that surfaces are clean and that there is no grease or dirt present before using these products. Anti bacterial products or sanitisers as they are often called are frequently a combination of cleaner and disinfectant.