In order to investigate effective factors on bread waste and determine effect genial of each factor on probability of being each family in three categories of low-medium, high and extra high bread waste, the order logit model and the 352 families data from Mashad city were taken in use. The samples have been selected using a simple random sampling method. The survey of marginal effect in order logit model showed that distance to backery, walking to backery, not cooling bread after purchasing, carrying bread on hand, number of times of going to backer’s per week, waiting time in backery, low assessment of bread price, per month income of household, average rate of bread consumption, household supervisor education, and education of other family members, decrease the probability of the family falling into the group of low and medium waste, and increase the probability of the family falling into the group of high waste and extra high waste families. Also, cooperation in buying bread, freezing bread, good assessment of bread quality, mother’s education, number of household members, average age of household, being mother housekeeper, and average rate of food consumption increase the probability of the family falling into the group of low and medium waste, and decrease the probability of the family falling into the group of high waste and extra high waste families.
JEL Classification:C21, M31