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We use it to produce the world map of products: https://cestemballepresdechezvous.fr/ (fr) and https://madenear.me/ (en) [down on 2021-08-19].
We use it to produce the world map of products: https://cestemballepresdechezvous.fr/ (fr) and https://madenear.me/ (en) [down on 2021-08-19].
'''Countries where sold'''
This field contains all the countries where the product is sold. If the field contains France, the product will be listed on the https://fr.openfoodfacts.org/ website.
The list of all existing countries can be found here: https://world.openfoodfacts.org/countries
In 2021, the [https://en.wikipedia.org/wiki/List_of_sovereign_states United Nation recognize 193 countries] but Open Food Facts also recognize more, such as overseas regions/territories such as French Guiana, Guadeloupe, French Polynesia, etc. This field is taxonomized. Some people
==== Ingredients ====
==== Ingredients ====
See [https://github.com/openfoodfacts/openfoodfacts-server/issues?q=is%3Aissue+is%3Aopen+ingredients+label%3Aingredients issues related to <code>ingredients</code>].
See [https://github.com/openfoodfacts/openfoodfacts-server/issues?q=is%3Aissue+is%3Aopen+ingredients+label%3Aingredients issues related to <code>ingredients</code>].
==== Substances or products causing allergies or intolerances ====
==== Substances or products causing allergies or intolerances ====
The substances are ingredients that are actually in the product, which could cause common allergies. This field can be filled by hand, but is also completed by automatic ingredients analysis.
The substances are ingredients that are actually in the product, which could cause common allergies. This field can be filled by hand, but is also completed by automatic ingredients analysis.
See [https://github.com/openfoodfacts/openfoodfacts-server/issues?q=is%3Aissue+is%3Aopen+traces+label%3Aallergens issues related to <code>allergens_tags</code>].
See [https://github.com/openfoodfacts/openfoodfacts-server/issues?q=is%3Aissue+is%3Aopen+traces+label%3Aallergens issues related to <code>allergens_tags</code>].
==== Traces ====
==== Traces ====
The traces are ingredients which are not used for the product itself but lay in the factory or the production process: the product might contains traces of these ingredients. Traces are really important if you are allergic.
The traces are ingredients which are not used for the product itself but lay in the factory or the production process: the product might contains traces of these ingredients. Traces are really important if you are allergic.
This field can be filled by hand, but is also completed by automatic ingredients analysis.
This field can be filled by hand, but is also completed by automatic ingredients analysis.
See [https://github.com/openfoodfacts/openfoodfacts-server/issues?q=is%3Aissue+is%3Aopen+traces+label%3Atraces issues related to <code>traces</code>].
See [https://github.com/openfoodfacts/openfoodfacts-server/issues?q=is%3Aissue+is%3Aopen+traces+label%3Atraces issues related to <code>traces</code>].
==== Best before date (expiration date) ====
==== Best before date (expiration date) ====
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.
In the database and in Product Opener software, the technical name for this field is <code>expiration_date</code>.
In the database and in Product Opener software, the technical name for this field is <code>expiration_date</code>.
==== Serving size ====
==== Serving size ====
Serving size has a specific goal: to let Open Food Facts app make a proportional calculation of each nutrient per serving size. If a candy's weight is 5 g, it can be chosen as the serving size: if these candies has 66 g of sugar per 100 g, it has about 3 g per candy. [https://github.com/openfoodfacts/openfoodfacts-server/blob/f25308b7d47255be83210f699f897cba87c9517f/lib/ProductOpener/Food.pm#L3835 Allowed units] are: <code>kg, g, mg, µg, oz, l, dl, cl, ml, fl.oz, fl oz, г, мг, кг, л, дл, кл, мл, 毫克, 公斤, 毫升, 公升, 吨</code>.
Serving size has a specific goal: to let Open Food Facts app make a proportional calculation of each nutrient per serving size. If a candy's weight is 5 g, it can be chosen as the serving size: if these candies has 66 g of sugar per 100 g, it has about 3 g per candy. [https://github.com/openfoodfacts/openfoodfacts-server/blob/f25308b7d47255be83210f699f897cba87c9517f/lib/ProductOpener/Food.pm#L3835 Allowed units] are: <code>kg, g, mg, µg, oz, l, dl, cl, ml, fl.oz, fl oz, г, мг, кг, л, дл, кл, мл, 毫克, 公斤, 毫升, 公升, 吨</code>.