reasons for Food spoilage

. food get spoilt mainly due to the presence of micro organisms,enzymes (presence in food) insects,worms and rats

conditions appropriate for growth of micro organisms are:

. food having high moisture content

. air surrounding the food contains micro organisms

. food kept for a long time at room temperature

. skin of fruits and vegetables getting damaged,if exposed to micro organisms

. foods with low salt,sugar or acid content

if you want to prevent spoilage of food by micro organisms,you must remove the conditions which are appropriate for their growth.