Food with a higher fat content emits more
PAHs than low-fat food (41). Also, an increase in cooking temperature generally
increases the production of most PAHs (3) because there is an increase firstly
in the evaporation of PAHs from heated oils into the air and secondly there is
an increase in the PAHs generated by pyrolysis from partially cracked organic
compounds in food and cooking oils (3,42). A comparative study of cooking practices showed that boiling produced the least PAHs, while broiling and frying
produced most PAHs