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== Why? ==
 
== Why? ==
 
Why do we need an ingredients ontology? The ontology describes how ingredients are derived from each other and how ingredients can be combined into new ingredients. An ontology might be useful to:
 
Why do we need an ingredients ontology? The ontology describes how ingredients are derived from each other and how ingredients can be combined into new ingredients. An ontology might be useful to:
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* normalise ingredients - Producers take a lot of freedom in describing the ingredients they use. An ontology helps to standardise the ingredients.
 
* find hidden ingredients - an ingredient might contain hidden ingredients, the ontology might reveal these. For example [https://world.openfoodfacts.org/ingredient/butter butter] contains [https://world.openfoodfacts.org/ingredient/butterfat butterfat].
 
* find hidden ingredients - an ingredient might contain hidden ingredients, the ontology might reveal these. For example [https://world.openfoodfacts.org/ingredient/butter butter] contains [https://world.openfoodfacts.org/ingredient/butterfat butterfat].
 
* show combined ingredients - an ingredient might appear as a single ingredient. In reality however
 
* show combined ingredients - an ingredient might appear as a single ingredient. In reality however
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