Causes	Incidence *	Significance **
Inadequate quality of raw material
No assessment of raw material suppliers
Lack of quality specification of raw materials
Lack of experience, qualifications, and knowledge
Non-compliance with job procedures
Non-compliance with the rules of production hygiene
Absence of training courses
Errors during the production process
Improperly functioning systems to ensure food safety
Break downs or equipment failures
Lack of monitoring of the state of repair of machinery
Interrupted supply of utilities
Inadequate product management (overproduction)
* 1—very rarely, e.g., once a year, 10—very often, e.g., once a week. ** 1—unimportant factor, 10—very important factor.