Define Visible Hazards in food

Physical hazards, as you would realize, include non-living things in  foods, such as stones, inedible stones, hair, glass, metal, wood, plastic, insulation material etc. These materials can become  a part of foods  from  the environment.

Now,  how  do these  get into  foods that we  eat? Well, there can be many ways. It could be  from the environment in which the foods are grown or contamination could occur during processing and  packaging e.g.  iron fillings from worn  out machinery, processing tea. Yes, the use of electronic metal detector in many food processing operations can help

in detecting and screening harmful metallic pieces.  Inspite of availability  of various mechanisms and technologies to prevent the risks caused due to physical contaminants, foreign / extraneous objects still represent one of the largest categories of complaints by  consumers. Hence, it  is  the job  of  the  government and industry  to  ensure  that these risks  are minimal  and  acceptable.