Cookies & snacks
Oreo / Mondelēz Batch Code Decoder
Mondelēz International stamps Oreo, Chips Ahoy, Ritz, and other cookie and cracker packages with a four-digit Julian production date and a single-letter plant identifier.
Decode your Oreo / Mondelēz code
Format: YJJJ + plant. Example:
Enter a code above to decode the production date.
Format
YJJJ + plant
Example
6099R
Year digit 6 + DOY 099 + plant R (Richmond, Virginia).
Typical freshness
270 days
from production date
About Oreo / Mondelēz batch codes
Mondelēz International, the company spun off from Kraft Foods in 2012, owns Oreo, Chips Ahoy, Ritz, Wheat Thins, Triscuit, Nabisco and a long list of other cookie and cracker brands. Every one of them carries a Julian production code stamped on the resealable inner tray or the back of the outer package: four-character YJJJ + a single letter for the plant. A package of Double Stuf Oreos with a 6099R stamp was produced on April 9, 2026 at the Richmond, Virginia plant. Sandwich cookies have a practical shelf-life window of approximately nine months from production, after which the creme filling starts to dry out and the cookie layers lose their snap. Crackers hold up slightly longer (about one year) because they have less fat and no creme. The Julian on the package is the production date and the best-by window has to be added by hand to get the actual expiration date.
Need the general technique for any package? See how to read a Julian date code. For the regulatory background on lot traceability, read the manufacturing guide, or convert any date on the converter.
This decoder is based on Oreo / Mondelēz's publicly documented code format. Manufacturers can change codes without notice — treat the result as an estimate and check any printed best-by date.