Reading Candy Bar Freshness Codes

I'm a candy collector collecting old candy wrappers to build my vintage candy wrapper collection for all to view.

Freshness Code, Date Codes, Stamp Code, Expire Date or Manufactures Code

A lot of the smaller companies just stamp a Best Before date on the package.

NECCO – Made Date

307191 – 3 is Mass. company, 071 is the 71st day of the year, 9 is the year 2009 and 1 is the shift they were made on which is the 1st .

Hershey – Expire Date

First number is year (0-9) second letter is month (A-L, which is Jan-Dec). However, some codes are like JAN2010, which needs no explanation.

Mars – Made Date

First digit is year next two digits are the week of the year it was made

Nestle – Made Date

They use Julian code so the first four digits are (1 digit year followed by 3 digit day of the year)


  1. I’m in charge of rotating the candy for a retail store and to save time I made an android app the converts these secret dates. You type in the 2 3 or 4 digit code and it spits out a readable date.
    3160 = June/09/2013 312 = Mar/20/2013 3L = December of 2013
    The app is free on the Google play store just search Eastwestmain or Code Date Converter

    Comment by Jeremy — June 19, 2013 @ 11:06 am

  2. Thanks

    Comment by Richard Saunders — June 19, 2013 @ 11:25 am

  3. What is the product shelf life from the manufactured date?

    Comment by wayne Lintz — July 5, 2014 @ 9:34 am

  4. Wow. Do you know how to convert a bundle of digits on the Tootsie Rolls bag? It reads: F 27 4 1 3 3 05:59. I take it the last 4 digits represent the time of the production. F could be the month (April), and 27 could be the day? What about the rest of them? 4133…hmmm.

    Comment by Yumm — October 14, 2014 @ 10:36 pm

  5. This is what I’m thinking. The F 27 (might) represent the date that is April 27.

    Now on to 4133. 4 could refer to a certain facility where the candy was made; 13 = year 2013; the last digit 3 = 3rd shift as is further supported by the time 05:59 that is a minute short of 6 am.

    I wonder if I got it right.

    Comment by Yumm — October 14, 2014 @ 10:42 pm

  6. On the hersheys candy bar …..expire date I only can see 2016 and can’t see the letters ???

    Comment by sandra charles-park — April 6, 2016 @ 6:48 pm

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