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Best before date (expiration date): link to ne page
The expiration date is a way to track product changes over time and to identify the most recent version. It's a data for manual usages. At this moment (2020-03), Open Food Facts apps and website don't make any usage of this field. An issue is open to [https://github.com/openfoodfacts/openfoodfacts-server/issues/76 throw off very old products in averages], it could be useful for it.
The expiration date is a way to track product changes over time and to identify the most recent version. It's a data for manual usages. At this moment (2020-03), Open Food Facts apps and website don't make any usage of this field. An issue is open to [https://github.com/openfoodfacts/openfoodfacts-server/issues/76 throw off very old products in averages], it could be useful for it.
Be aware that, for the moment, this field is NOT normalized, so it probably contains dates in various formats that can be ambiguous (31/12/2019, 12/31/2019, 13 mai 2018, etc.).
Be aware that, for the moment, this field is NOT normalized, so it probably contains dates in various formats that can be ambiguous (31/12/2019, 12/31/2019, 13 mai 2018, etc.). Also, the meaning of "best before", "expiry date", "use-by" notions might be different from different countries. You can help us to gather information about it in your own country, participating to the page [[Dates on the products]].
It is possible to see:
It is possible to see: