The IFR generally supports efforts to reduce or reuse food waste, as a way of reducing the overall environmental impact of the food chain. However, this needs to be done in a responsible manner. It is essential that any food waste used to feed pigs is not exposed to contamination from meat or other animal-derived foods, to prevent contamination. This is why it is currently illegal to feed catering waste to pigs. Untreated waste caused a major foot and mouth outbreak in 2001. Other viral diseases of animals are also spread in this way, such as African Swine Fever, and there is a risk these could come to the UK.