11/14/2014 12:42 EST | Updated 01/14/2015 05:59 EST

Food manager criticizes food preparation at Arrowhead and Kauffman stadiums in Kansas City

KANSAS CITY, Mo. - A food safety manager says dirty conditions and poor food handling endangered customers at Kauffman and Arrowhead stadiums in Kansas City. A city health inspection prompted by the allegations found dozens of critical health code violations at the stadiums.

ESPN first reported the allegations from Jon Costa, the food safety manager for Aramark, which runs concessions at the two stadiums and at sports venues across the country.

Costa said he found such things as cockroaches and mouse feces in food-service areas and foods kept at unsafe temperatures. The city health inspection on Nov. 3 found mould in ice machines and dirty equipment.

Aramark spokesman Tod MacKenzie said the claims come from a disgruntled employee, even though he was responsible for managing food safety at the stadiums.