HUMAN NUTRITION

Detailed explanation-1: -Cross-contamination occurs when microorganisms (bacteria, parasites, viruses)are transferred from a food where they occur naturally to one where they do not naturally occur. This is dangerous because unsuspected foods are not necessarily prepared in a manner to prevent the survival of microorganisms from other sources.

Detailed explanation-2: -Bacteria in raw meat and poultry juices can be spread to other foods, utensils and surfaces. We call this cross-contamination.

Detailed explanation-3: -An example of this type of contamination that usually occurs at home is when we use the same cutting board and knife without washing it after cutting raw meat and vegetables. So, washing vegetables, hands, utensils or cutting board before & after food preparation is very important.