NOVELTY - Pasteurizing chicken litter, comprises: entering an area, where a first set of chickens have been defecating and urinating upon a layer of litter; aerating a first time the litter into a first windrow; letting the first windrow set until achieving a temperature of at least 130 degrees F internally; aerating a second time the first windrow into a second windrow; letting the second windrow set until achieving a temperature of at least 130 degrees F; spreading the second windrow out to completely cover the entire area; and placing a second set of chickens on the litter.    USE - The process is useful for pasteurizing chicken litter to destroy the bacteria and pathogens.    ADVANTAGE - The process exhibits: a center temperature of at least 130 degrees F; a reduction in mortality rate of the chickens over that of prior methods; and an increase of the weight gain per day of the chickens over that of prior methods. In the process, the litter can be reused at least six times in a year.    DETAILED DESCRIPTION - Pasteurizing chicken litter, comprises: entering an area, where a first set of chickens have been defecating and urinating upon a layer of litter, and the layer of litter covering the entire area and having an increased bacteria and pathogen level; aerating a first time the litter into a first windrow, where the litter is piled upon itself in a line; letting the first windrow set until achieving a temperature of at least 130 degrees F internally; aerating a second time the first windrow into a second windrow, where the litter is piled upon itself in a line; letting the second windrow set until achieving a temperature of at least 130 degrees F, where the litter will have a reduced pathogen level from the increased pathogen level; spreading the second windrow out to completely cover the entire area; placing a second set of chickens on the litter, where the second set of chickens will receive at least a decrease in a death rate compared to chickens on the litter not aerated both a first and second time, and an increase in a conversion in feed production rate in pounds of feed per pounds of bird at time of slaughter over the chickens on the litter not aerated both a first and a second time.