Below is the lengthy response from our consumer foods team about how to decipher the "Better if Used By" dates on products...
GENERAL MILLS, INC.
CODE DATING INFORMATION SHEET
Determining how long to save products is often confusing to consumers. The following overview, of the four methods of coding we use on our products, will help you make these determinations:
BETTER IF USED BY DATE
Big G cereal, Bisquick and many of the Dessert and Main Meal products use this style coding on the packages. These products are guaranteed to be fresh through this date.
For example: 28DEC01 T08105
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Date product should be used by for best quality Manufacturing plant information
EXPIRATION DATE
Ready-to-spread Frosting and Pouch mix products use this style coding on their packages. These products are guaranteed to be fresh through this date.
For example: EXP23DEC01 M 0157B
Please note if the products have the above two codings it is a fairly old product as General Mills stopped using that coding around 2000.
MANUFACTURING DATE
The manufacturing date is coded to the calendar year, which begins on January 1st and is completed on December 31st. It is interpreted as follows:
· The first letter of the code indicates the month in which the product was made.
· The number immediately following is the year in which the product was produced/packaged
· The next two digits are the day of the month the product was packaged on (01 – 31)
· The other letters and number(s) in the code represent plant and shift information identifying the location of production.
A code date which reads A429W is translated as follows:
"A" = January
"4" = 2004
"29" indicates the 29th day of the month
"W" indicates production at our West Chicago plant.
(Most of our products have a shelf life of at least 8-12 months.)
Our 12-month cycle is listed below.
A - JANUARY
B - FEBRUARY
C - MARCH
D - APRIL
E - MAY
F - JUNE
G - JULY
H - AUGUST
I - SEPTEMBER
J - OCTOBER
K - NOVEMBER
L - DECEMBER
Once a product is past its shelf life date, the taste and performance may not be of the highest quality.