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* ''marketing driven'' - some categories correspond to a category in the users mind, as it has often been used in the marketing message. For instance [https://world.openfoodfacts.org/category/bolognese-lasagne Bolognaise lasagnas] is clear to the user.
 
* ''marketing driven'' - some categories correspond to a category in the users mind, as it has often been used in the marketing message. For instance [https://world.openfoodfacts.org/category/bolognese-lasagne Bolognaise lasagnas] is clear to the user.
 
* ''ingredients driven'' - the ingredients determine to a large extent the category. This is most obvious for unprocessed single ingredient products;
 
* ''ingredients driven'' - the ingredients determine to a large extent the category. This is most obvious for unprocessed single ingredient products;
* ''recipe complexity'' - the products that OFF covers goes from basic food, like [https://world.openfoodfacts.org/category/potatoes potatoes] that just come out the ground to fancy ready to eat [https://world.openfoodfacts.org/category/meals meals]. And everything in-between:
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* ''recipe complexity'' - the products that OFF covers goes from basic food, like [https://world.openfoodfacts.org/category/potatoes potatoes] that just come out the ground to fancy ready to eat [https://world.openfoodfacts.org/category/meals meals]. And everything in-between (not very clear how to cut things up):
** ''raw/unprocessed products'' - mainly from natural/vegetable origin. Maybe some processes are allowed (cleaning/cutting)?
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**''raw/unprocessed products'' - mainly from natural/vegetable origin. Maybe some processes are allowed (cleaning/cutting)? There is a very large overlap with NOVA 1 products;
 
** ''extended shelf life products (?)'' - some processes are allowed in order to extend the shelf life of unprocessed products, like pasteurisation, pre-cooking (for cans), ..?
 
** ''extended shelf life products (?)'' - some processes are allowed in order to extend the shelf life of unprocessed products, like pasteurisation, pre-cooking (for cans), ..?
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** ''baking involved'' - prefried products;
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** ''mixing involved'' - adding sauces;
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** ''cooking involved'' - vegetable mixes, ingredients packages;
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** ''meals'' - only heat them in the oven or microwave;
 
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* ''geographic origin'' - the location where a product is produced. This if often used for PGO-products. Example: [https://world.openfoodfacts.org/category/olive-oils-from-italy Olive oils from Italy]. Any hierarchy implies a sub- or super-region. it mould be possible to define the category Foods from Italy of Foods from the EU and combine it with the origins taxonomy;
 
* ''geographic origin'' - the location where a product is produced. This if often used for PGO-products. Example: [https://world.openfoodfacts.org/category/olive-oils-from-italy Olive oils from Italy]. Any hierarchy implies a sub- or super-region. it mould be possible to define the category Foods from Italy of Foods from the EU and combine it with the origins taxonomy;
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