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Retail Stock Management

 

 
 

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Stock management of perishables is a hot topic.  Losses can be high">

    

Return to Main Page | Contact Us | Sales Information
                                                                      Return to Main Page | Contact Us | Sales Information
 

 
Retail Stock Management

 

 
 

·
 


Stock management of perishables is a hot topic.  Losses can be high, and profitability in the retail food business is linked to loss control.  Traditionally, stock management has been based on product dating, but experience proves this method to be ineffective because of built-in losses that are part of every dating system:

Every product dating system requires that some product be thrown out because of lack of an early warning about temperature-abuse.  (Type I loss error).

Every product dating system requires discarding good product that lasts beyond the expiration date, because it does cannot reward excellent temperature holding conditions. (Type II loss error).

Why use a system that requires product loss of any type? 

CheckPoint® is the "no loss alternative" to loss-prone product dating systems.

FIFO System – The Existing Protocol 

Dealing with both of these types of losses can be achieved by a different approach to perishable product management.  The typical system that is used in conjunction with a product date stamping system is FIFO.  Using FIFO (First In, First Out), the product with the soonest expiration date is preferentially placed on the retail shelf for sale.  With this system, it is still possible to put spoiled product in front of a customer that is not fresh to the taste, or possibly not wholesome or safe.  This is because the variation in the temperature history of any given product parcel is fairly large, and some may actually expire before the expiration date says they will.  Product that can be “judged to be expired” before the actual stamped date can be removed and discarded.  This is an important part of “shrink”.  Of course, if the product has actually expired before the stamped date and is purchased by a consumer, other more significant losses may occur (food safety problems, loss of customer confidence, etc.). 

LSFO System – The Use of TTI’s as Replacement for Shelf Life Dates

The use of CheckPoint® TTI labels on products offers a different and more efficient alternative.  Instead of a FIFO system, TTI labels allow a LSFO (Least Shelf Life, First Out).  In this system, if the temperature sensing and integration function of the labels shows an earlier signal in the CheckPoint® label (signaling a the need for a stock rotation decision), then that product is rotated to the retail shelf.  This rotation is totally independent of the product dating.  Under this scenario, the possibility of placing “bad product thought good” in front of the consumer is almost reduced to zero.  The LSFO system also permits the economic use of product that is still good, even though a date stamping system might mandate it’s discarding.  Generally, however, the “early warning” aspect of the LSFO system purges old product from the system before this has any significance to product rotation. 

The superiority of the LSFO system using CheckPoint® labels was scientifically proven in a case study [Footnote 1] performed at the National Technical University of Athens by Dr. Petros Taoukis.  Using actual data on the known shelf life at different temperatures of two prepared food products, and combining these data with field data on retail storage temperatures, Dr. Taoukis was able to perform a comparison of the FIFO system and the LSFO system using CheckPoint®.  The studies compared the outcomes in terms of product losses in each system. 

The findings of the study are extremely revealing: 

Losses due to the inadequacies of the FIFO system were almost totally eliminated by the LSFO system.  

Shrink of the chilled salad product was about 15-20%, and almost all of this shrink was eliminated by the use of CheckPoint® labels in combination with the LSFO protocol.

This example was a conservative demonstration of the utility of the LSFO approach.  The salad product had an 84 day shelf life, and is a relatively stable product.  The LSFO method may very well have more dramatic results with perishable products of lesser stability and shelf life.  

Economic Consequences of an LSFO Method

If the savings of the example presented by the quantitative study of Dr. Taoukis is correct (15%), then the cost factor associated with employing a CheckPoint® LSFO system is easy to calculate.

Under the assumption of a 15% shrink factor, and a corresponding improvement with the use of the LSFO method, the following analysis shows how the system pays for itself even at low value recovery (low value perishable commodities).    

Cost Basis of Master Carton

Typical Cost of CheckPoint® Label[Footnote 2]

Label as % of Total Cost

FIFO Shrink %

Cost of Shrink using FIFO System [per Master Carton] 
= loss on a cost basis

Shrink Reduction with LSFO [per Master Carton]
= gain on same cost basis

$ 5

$0.10

2.0%

15%

<$0.75> (loss)

$0.65 (gain)

$10

$0.10

1.0%

15%

<$1.50> (loss)

$1.40 (gain)

$20

$0.10

0.5%

15%

<$3.00> (loss)

$2.90 (gain)

$50

$0.10

0.2%

15%

<$7.50> (loss)

$7.40 (gain)

Basically, this chart shows the dollars and cents consequences of using a LSFO system.  On the first line (master carton costs $5), the shrink loss with FIFO is $0.75.  This same line shows a bottom line net gain using the LSFO system with a CheckPoint® TTI of $0.65.  Of course, if the shrink factor were greater than 15%, then the analysis would show greater gains.  This analysis shows that the use of CheckPoint® in an LSFO approach can be economically viable, and especially significant with high value products. Similar spreadsheet analyses will yield the same or better cost benefit consequences. 

Conclusion:

Almost every conceivable use of CheckPoint® labels as a product management tool for stock rotation using a LSFO protocol will create some net positive cash advantage.  If the CheckPoint® labels are being used for food safety, product integrity or other benefit, using a parallel LSFO system will ensure that the program will be cost beneficial and “pay for itself”.  Our white paper treats this issue in detail.

Footnotes


[1] Taoukis, P.S., Bili M., Giannakourou M. (1998).  “Application of shelf life modeling of chilled salad products to a TTI based distribution and stock rotation system.“ Proceedings of the International Symposium on Applications of Modeling as an Innovative Technology in the Agri-Food-Chain Ed. L.M.M. Tijskens,  Wageningen, Netherlands, p. 131-140. [Click above to view whole article.]


[2] The typical cost with application and storage in low volume usage is shown at $0.10 in this analysis.   Cost of the CheckPoint® III system would be substantially lower than $0.10 at high volume.


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