If you have a product that is nearing its expiration date or has already expired and you know that the product is still fine because it has been kept frozen, would it be ok to change the label and give a new pack date to reflect the shelf life extension. e.g I packed on 1/1 and product shelf life is 3 months so it expired on 4/1. If I give it a month of shelf life extension can I repackage with labels with date from 2/1?

Is it the product you made? If yes - you can extend shelf life as long as you want provided you have a proof that this product is still within the spec (e.g., micro, organoleptic, etc.) If it's not your product - that's different story: you should request shelf life extension from the supplier. If they don't provide - you may test the product yourself for micro and other characteristics to make sure it's still within the spec.


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No, it wouldn't be a food fraud as you are extending shelf life of YOUR product, basing on testing results (organoleptics?). RE: "why not" - I meant, "why not to change the expiry date". Shelf life is not standardized characteristic and can be changed.

It might be worth considering changing the shelf life statement or format if it is an equation "pack date plus X." You can certainly change a best by or best before date after a review of your own product.

The Administration for Strategic Preparedness and Response (ASPR) and the Food and Drug Administration (FDA) are announcing the authorization of an additional extension to the shelf life for the Merck antiviral therapy, Lagevrio (molnupiravir) capsules from 30 months to 36 months. Lagevrio capsules are currently authorized for emergency use for the treatment of mild-to-moderate COVID-19 in adults with positive results of direct SARS-CoV-2 viral testing who are at high risk for progressing to severe COVID-19, including hospitalization or death, and for whom alternative COVID-19 treatment options approved or authorized by FDA are not accessible or clinically appropriate.

Shelf-Life Extension System (SLES) is the DoD Shelf-Life Management system regarding internal shelf-life policy information for the life-cycle management of standard and hazardous shelf-life items contained in the Federal supply system.

SLES is also the central DoD data repository for Materiel Quality Control Storage Standards (MQCSS) and the Quality Status List (QSL). SLES users search the Materiel Quality Control Storage Standards (MQCSS) and Quality Status List (QSL) databases to view data elements required to determine if a shelf-life NSN can be extended. MQCSS provides guidance on inspection, testing, and storage requirements for Type II extendible shelf-life materiel. MQCSS is the authority for shelf-life extension when visible inspection only is required. QSL contains the results of previously completed laboratory extension testing.

What is the shelf-life of Xerox supplies? Is there an expiration date (or best-before date)? Sitting opened or unopened on a cool dark shelf, perhaps they are good for 1 year, 5 years, 10 years, 20 years?

We want to keep spares in inventory, but are concerned shelf-life might get exceeded due to long-term large capacity cartridges. This problem seems to be exacerbated because most cartridges do not show a manufactured date, so it is often difficult to rotate stock by choosing the oldest cartridge for installation.

This question of shelf-life isn't limited to just CYMB TONER CARTRIDGES; but also to DRUM CARTRIDGES, SECOND BIAS TRANSFER ROLLS, and FUSER CARTRIDGES; maybe even to DEVELOPERS, TRANSFER BELT CLEANERS, and WASTE TONER CONTAINERS. Without a manufacturing date stamp, what do you use as a baseline for shelf-life?

However, the law does not require cosmetics companies to share testing and tracking information with FDA. If you would like to know how a company tests cosmetic shelf life and keeps track of products on the market, you will need to contact the company.

However, if my data has an increasing trend and I have a lower specification limit, I expect that the shelf life should be very high or infinite. But the result in JMP will show that the shelf life is 0, and this is because the lower bound of 95% confidence limit crosses the lower specification at a time less than 0. Please see attached example. Thanks.

Fuji's limit of 8,8 rolls per liter is the absolute maximum. I got reddish shadows and blacks on 10th roll, mixed chemicals were 9 months old. Pretty good shelf life! 


I didn't get even closely as bad a result as Retro Pete above, though.

Originally posted 104 months ago. (permalink)

 HolmisticWalker edited this topic 104 months ago.


The shelf-life of beef is of significant importance in the retail marketplace. Shelf-lifeis defined as the period of time between packaging of a product and its end use whenproduct properties remain acceptable to the product user. Shelf-life properties mayinclude appearance, texture, flavor, color and nutritive value (Singh & Singh, 2005). Simplyput, shelf-life is the amount of time that passes before meat becomes unpalatable or unfit forhuman consumption because of the growth of spoilage organisms.

When considering the shelf-life of a meat product some people make a distinction betweencase-life and shelf-life. Case-life (also referred to as color shelf-life or display-life) isdescribed as the length of time meat can be displayed under refrigeration before a colorchange occurs. This color change from the bright, cherry-red color of beef to another color,such as brown, is caused by a change in the protein myoglobin (Brooks, 2007). Myoglobin isthe color pigment in muscle and is responsible for binding oxygen. While this color changeis not harmful and does not denote spoilage, it results in a color customers find undesirable.Shelf-life of beef is often used to describe the length of time before the product will spoil, ormore specifically, the time required for spoilage organisms to reach an unacceptable level.This growth of spoilage organisms renders the product organoleptically undesirable but notnecessarily unsafe.


Beef is typically delivered to a retail store via two general systems: as boxed beef or inindividual, case-ready packages ready for display. Boxed beef is sealed in a vacuum packageand subsequently opened at retail and cut into steaks and roasts. After cutting, steaks androasts are typically re-packaged in an oxygen-permeable overwrapped film and placed in theretail case. Individually prepared packages can be (when required) placed directly into theretail case for sale (Eilert, 2007). These two methods can involve many different packagingsystems/configurations that have very different shelf-life and case-life expectations.

One of the most effective practices for improving the safety and quality of meat is properstorage temperature (Koutsoumanis and Taoukis, 2005). Belcher (2006) describes fourcriteria that dictate packaging system utilization for fresh meat delivery. The first criterionon the list is the need to obtain the longest quality-life, which can only be achieved inconjunction with excellent temperature control and hygiene.


Vacuum packaging is the most common method of delivering beef primals and subprimalsthroughout the beef chain. Vacuum packaging is typically accomplished through the use of a bag or pouch that has very low moisture and oxygen transmission rates. The air (oxygensource) is removed from the package via a vacuum chamber and the package is heat sealed.With the elimination of oxygen, the growth of typical spoilage organisms is significantly reduced, thereby extending product shelf-life. However, with vacuum packaging, myoglobin remains in the native form and has a purple color. The advent of centralized preparation of beef primal andsubprimal cuts (called case-ready) has provided a superior product with little moisture loss (shrink) and extended shelf-life. Savell et al. (1981) noted that a system involving the use of vacuum packaging for retail cuts would work well for extending retail display, but problems exist becausethe color of the packaged product (purple color) differs significantly from the color expected by consumers. The shelf-life of vacuum-packaged fresh beef primals and subprimals is generally reported as approximately 35 to 45 days, with longer shelf-life of 70 to 80 days possible whenrefrigeration is optimally low (28-32F). Voges et al. (2006) reported a range of three to 83 days for average retail aging and seven to 136 days for average foodservice aging.


The most common form of fresh meat packaging in the retail marketplace is air-permeable overwrap. While this form is still utilized for the majority of the fresh beef packaged in the U.S., the number is decreasing due to the availability of modified atmosphere packaging (MAP), or case-ready systems. An air-permeable overwrap package typically consists of a foam tray and absorbent pad that rests under the meat cut. The tray is wrapped in a clear film that is permeable to moisture and oxygen. The film characteristics allow oxygen from the air to come in contact with the beef, changing the color from purple to bright cherry-red. While this package type is the most economical, it also yields the shortest case-life due to continued exposure to oxygen and the oxidation of the myoglobin, eventually resulting in a brown color (Brooks, 2007). e24fc04721

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