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Showing posts with label shelf-life. Show all posts
Showing posts with label shelf-life. Show all posts

Monday, December 6, 2010

SHELF-LIFE OF FOODS-A NEW ADVISORY WEBSITE

Wastage of food is a matter of concern when one realizes that there are millions of people in many parts of the world who have to go to bed hungry due to their inability to access the required food because of many factors. Families in many affluent countries throw away good foods as a matter of habit without realizing the implications of such enormous wastes. It is not the argument that people should not enjoy a good meal as they have the right and the resources to access such foods but exercising moderation in buying foods can prevent such avoidable wastes. The labeling system that is mandatory for the industry to follow also contributes to food wastage in its own way because the warranty provisions imply that expired food products are not safe to eat. Some time back the food minister in the UK appealed to the consumers not to throw away foods just because the warranty period was over. But is it practical to expect the consumers to follow such appeals which fly in the face of the principle that expiry date is printed based on the perception of the manufacturer that all foods have definitive shelf life?. The logic in advocating use of date expired food is based on the fact that it only applies to the eating quality and not safety. Against such a backdrop, the initiative by a retired professor in the US to operate a web site that can be of help to consumers in clarifying many issues vis-à-vis food safety.

Somewhere along the path toward food safety, we often make a detour toward obsession. An obsession that compels us to throw out food before we really have to. And that, in turn, costs us money. Before we blame ourselves, let's not forget that the habit is enabled by all those "Use By" and "Sell By" and "God Forbid You Eat This AFTER" package label dates, not to mention recent headlines of good food gone bad. The challenge: How to be a food-savvy cheapskate versus a food-sickened cheapskate. A new Web site wants to help ShelfLifeAdvice.com delivers bushels of articles on the topic: how to store food, save food, clean food, freeze food and, yes, clarification of those dates on packaged and fresh foods. The brainchild of retired professor Ethel Tiersky and her son, Howard, the site also features links to lots of Web sites, and it has a board of advisers of food-safety pros from across the U.S. A recent lead article was titled, "Soft Cheese: A Delicious Delicacy or a Menace?"

Though such initiatives are welcome and the promoters are to be admired for their novel venture, how far it will solve the day to day problems faced by the consumers in handling processed foods is some what uncertain. Of course if the foods bought from the super markets are handled with care and caution they can definitely last much longer than the warranty date because shelf life of each and every food is determined under some standard conditions and projected for room conditions. In principle if foods are stored under low temperatures, their life can be extended significantly. Whether chemical spoilage or microbial growth, the rate of change in the food is slowed down considerably at lower temperatures, hence the longer shelf life. Ultimately the consumer will have to decide based on flavor and taste of the product to decide whether it is acceptable or not. Similarly most foods if heated beyond a temperature of 70C can be expected to be safe from pathogens.
V.H.POTTY
http://vhpotty.blogspot.com/
http://foodtechupdates.blogspot.com

Sunday, April 11, 2010

SHELF-LIFE OF PROCESSED FOODS-GUIDELINES TO INDUSTRY

Though every food processor has the responsibility to guarantee the quality of the food made by him as prescribed by mandatory standards, the larger question regarding the period during which the quality will remain unchanged is a problem. It is true that declaring the "Best before Date" on the label being practiced in several countries including India gives some idea to the consumer as to how long these foods can be kept without appreciable quality deterioration. In order to declare the "best before date", manufacturers need scientific data regarding the behavior of foods once processed and packed and the rate of deterioration. It is difficult for SMEs to carry out simulation studies to predict shelf life of processed foods under different storage conditions involving strong laboratory infrastructure and financial resources and this is where some form of collective approach is called for.

"A free publication to help food businesses of all sizes determine the shelf-life of ready-to-eat foods has been published today, by the British Retail Consortium (BRC) and the Chilled Food Association (CFA).The Shelf-life Guidance is designed to help businesses, from small food outlets to major food manufacturers, calculate an accurate safe time period that certain foods can be kept before they are eaten. The guidance is also designed to help firms meet European Union microbiology rules – in particular Regulation (EC) No. 2073/2005. This sets limits on micro-organisms in food, such as listeria, which is the focus of the guidance. Complex issues are explained in an easy to understand manner for staff at all levels of expertise. Real life worked examples are provided to show how the advice should be put into practice.

The BRC chaired a coalition of organisations that developed the Guidance, including the CFA, CIEH, LACORS, Food Standards Agency (FSA) and the UK National Reference Laboratory Services for Food Microbiology (Health Protection Agency) participating as an observer. Sally Barber, British Retail Consortium food policy executive, said: "Setting the right shelf-life is essential for food safety. The Guidance will help businesses of all sizes to calculate the correct food shelf-life for their products and to meet European microbiology regulations. It's a free publication, with easy to use explanations and common everyday examples. "Kaarin Goodburn, secretary general of the Chilled Food Association, which led food manufacturing sector input, said: "We are pleased that such a wide range of organisations participated in developing the Guidance. We hope it will provide vital information on how to set shelf life, what the key pre-requisites are for making ready to eat food, and the basic principles of what to look for when selecting ready to eat ingredients." Jenny Morris, Chartered Institute of Environmental Health food policy officer, said: "CIEH welcomes the Guidance, as setting shelf life limits can be complex. We believe that this Guidance will assist all food businesses, large or small, and will also be of considerable use to food law enforcers."

The progressive stance of the British Food Industry deserves appreciation and such coalition efforts can bring about significant improvement in consumer confidence on the processing industry and the products churned out by its members. The credibility of these activities get further boost considering that the government watch dog body also blessed the venture.

V.H.POTTY
http://vhpotty.blogspot.com/
http://foodtechupdates.blogspot.com