Nitrogen flushing in packaged foods improves the shelf life. The presence of nitrogen lowers the amount of oxygen, slowing down the growth of aerobic lifeforms and the speed of oxidation reactions.
Another inert gas that can be used to replace the oxygen is carbon dioxide. This gas can lower the pH or inhibit the growth of bacteria in the food.
Adapted from http://en.wikipedia.org/wiki/Modified_atmosphere
Friday, May 16, 2008
Wednesday, May 14, 2008
Product Recall
A food recall is the removal of products from sale, distribution and consumption. A recall is a precautionary measure that needs to be implemented when the product poses a possible public health and safety risk to consumers. Products that do not pose a potential risk to public health and safety may also be withdrawn from sale when it has a quality defect or has labelling irregularities.
Types of food recalls
The type of recall depends on the type of product, where it is sold and reason for the recall.
1. Trade Level - involves recovery of the product from distribution centres and wholesalers and may also involve hospitals, restaurants and other major catering establishments, and outlets that sell food manufactured for immediate consumption or food that is prepared on the premises.
2.Consumer Level - involves recovery of the product from all points in the production and distribution networks including any affected product in the possession of consumers.
3.Voluntary Recall - where the manufacturer or importer initiates a food recall
4.Mandatory Recall - where the Director General of NSW Food Authority directs the manufacturer/importer to recall a food product.
Adapted from
http://www.foodauthority.nsw.gov.au/industry/fb-recalls.asp
Types of food recalls
The type of recall depends on the type of product, where it is sold and reason for the recall.
1. Trade Level - involves recovery of the product from distribution centres and wholesalers and may also involve hospitals, restaurants and other major catering establishments, and outlets that sell food manufactured for immediate consumption or food that is prepared on the premises.
2.Consumer Level - involves recovery of the product from all points in the production and distribution networks including any affected product in the possession of consumers.
3.Voluntary Recall - where the manufacturer or importer initiates a food recall
4.Mandatory Recall - where the Director General of NSW Food Authority directs the manufacturer/importer to recall a food product.
Adapted from
http://www.foodauthority.nsw.gov.au/industry/fb-recalls.asp
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