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== Issues common to all kind of data quality issues ==
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=== There is no picture of the nutrition table ===
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Eg. https://world.openfoodfacts.org/product/8480000325242/aroma-de-vainilla-hacendado
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'''Solution or workaround''': no workaround. Don't copy data from other sources. Our data should be based on our photos.
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'''Action''':
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* erase all nutrition facts' values.
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* remove nutrition facts' picture if it is not correct.
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'''Github issue''': - 
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=== The picture of the nutrition table is lacking data ===
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'''Solution or workaround''': no workaround. Don't try to put data if there are not displayed on the packaging.
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'''Action''': put a hyphen (<code>-</code>) where the data are missing.
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'''Github issue''': - 
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== en:nutrition-value-over-105-fruits-vegetables-nuts-estimate-from-ingredients ==
 
== en:nutrition-value-over-105-fruits-vegetables-nuts-estimate-from-ingredients ==
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'''Github issue''': [to be created?]
 
'''Github issue''': [to be created?]
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=== When the data quality error is a bug from Open Food Facts (product opener) ===
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Sometimes the data quality error is a parsing bug.
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Eg. :
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* https://world.openfoodfacts.org/cgi/product.pl?type=edit&code=3038354191904#ingredients
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* https://world.openfoodfacts.org/product/3281780096040
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'''Solution or workaround''': none.
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'''Action''': the product can be tagged with [[Folksonomy Engine]]: <code>data_quality:product_opener_issue => yes</code>
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'''Github issue''': https://github.com/openfoodfacts/openfoodfacts-server/issues/7816
    
== en:nutrition-value-total-over-105==
 
== en:nutrition-value-total-over-105==
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When the product density is greater than the water and the weight displayed for 100ml, the total of the ingredients can be greater than 105.
 
When the product density is greater than the water and the weight displayed for 100ml, the total of the ingredients can be greater than 105.
   −
Eg. https://world.openfoodfacts.org/product/20271343/sirop-d-agave-bio-sonne
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Eg.:
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https://world.openfoodfacts.org/product/20271343/sirop-d-agave-bio-sonne
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https://world.openfoodfacts.org/product/7501088011375
    
'''Solution or workaround''': [to be discussed]
 
'''Solution or workaround''': [to be discussed]
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'''Github issue''': [to be created?]
 
'''Github issue''': [to be created?]
== en:nutrition-value-over-105-en-dry-residue-at-180-c ==
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=== When? The product is water? ===
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Eg. https://world.openfoodfacts.org/product/4056489194446
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'''Solution or workaround:''' should we check the box "Nutrition facts are not specified on the product."?
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==en:energy-value-in-kj-does-not-match-value-computed-from-other-nutrients & en:energy-value-in-kcal-does-not-match-value-computed-from-other-nutrients==
 
==en:energy-value-in-kj-does-not-match-value-computed-from-other-nutrients & en:energy-value-in-kcal-does-not-match-value-computed-from-other-nutrients==
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* https://world.openfoodfacts.org/product/3165437400001
 
* https://world.openfoodfacts.org/product/3165437400001
 
* https://world.openfoodfacts.org/product/3329757003957/
 
* https://world.openfoodfacts.org/product/3329757003957/
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* https://world.openfoodfacts.org/product/0013200000008
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* https://world.openfoodfacts.org/product/3256223661215
    
'''Solution or workaround:''' there is no solution. The producer did not mention that the products contains ingredients that should not be counted to compute the energy. For example, if a product is Stevia and contains 99g/100g of carbs, there should not be counted because stevia is not providing any energy.  
 
'''Solution or workaround:''' there is no solution. The producer did not mention that the products contains ingredients that should not be counted to compute the energy. For example, if a product is Stevia and contains 99g/100g of carbs, there should not be counted because stevia is not providing any energy.  
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'''Action''': the product could be tagged with <code>use data_quality:lack_of_data_to_compute_energy</code> ????  
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'''Action''': the product could be tagged with [[Folksonomy Engine]]: <code>use data_quality:lack_of_data_to_compute_energy</code> ????  
    
'''Github issue''': https://github.com/openfoodfacts/openfoodfacts-server/issues/7789
 
'''Github issue''': https://github.com/openfoodfacts/openfoodfacts-server/issues/7789
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'''Github issue''':  
 
'''Github issue''':  
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=== When? Vinegar or equivalents? ===
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=== When? Tea or equivalents? ===
Eg. https://world.openfoodfacts.org/product/3182384011012
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Eg. https://world.openfoodfacts.org/product/4056489024354
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'''Solution or workaround:'''  
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'''Solution or workaround:'''
    
'''Action''':
 
'''Action''':
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'''Github issue''':   
 
'''Github issue''':   
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=== When? Tea or equivalents? ===
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=== When? Lemon juices? ===
Eg. https://world.openfoodfacts.org/product/4056489024354
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It seems that many lemon juices are reporting errors: more than '''225''' as of 2022-12-15, which is '''nearly half of all the lemon juices''' (577).
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* Lemon juice category: https://world.openfoodfacts.org/category/lemon-juice
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* Data quality errors related to lemon juice category: https://world.openfoodfacts.org/category/lemon-juice/data-quality-errors
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Eg.
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*https://world.openfoodfacts.org/product/8009490000561/jus-de-citron-siracuse
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*https://world.openfoodfacts.org/product/8009490001087/jus-de-citron-siracuse
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*https://world.openfoodfacts.org/product/26001142
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'''Solution or workaround:'''
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'''Solution or workaround''':
    
'''Action''':
 
'''Action''':
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'''Github issue''':   
 
'''Github issue''':   
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=== When? Can not see the nutrition table in the pictures ===
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===When? Vinegar or equivalents?===
Eg. https://world.openfoodfacts.org/product/8480000325242/aroma-de-vainilla-hacendado
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It seems that many vinagers are reporting errors: more than '''608''' as of 2022-12-15, which is '''nearly 20% of all the vinegars''' (3528).
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* https://world.openfoodfacts.org/category/vinegars (3528 products)
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*https://world.openfoodfacts.org/category/vinegars/data-quality-errors (608 products)
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Eg. https://world.openfoodfacts.org/product/3182384011012
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'''Solution or workaround''': no workaround. Don't copy data from other sources. Our data should be based on our photos.
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'''Solution or workaround''':  
    
'''Action''':
 
'''Action''':
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* erase all nutrition facts' values.
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'''Github issue''': 
* remove nutrition facts' picture if it is not correct.
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===When? Chewing gum or equivalents?===
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'''Github issue''': - 
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Eg.
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=== When? ===
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* https://world.openfoodfacts.org/product/26038360
Eg. https://world.openfoodfacts.org/product/4056489123514/
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* https://world.openfoodfacts.org/product/27031247
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* https://world.openfoodfacts.org/product/4009900517430/extra-professional-white-strawberry-wrigley
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'''Solution or workaround:'''  
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'''Solution or workaround''':
    
'''Action''':
 
'''Action''':
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'''Github issue''':  
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'''Github issue''':
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== en:energy-value-in-kcal-does-not-match-value-in-kj ==
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===When?===
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Eg.
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=== When? ===
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*https://world.openfoodfacts.org/product/4056489123514/
Eg. https://world.openfoodfacts.org/product/3502110008459
      
'''Solution or workaround:'''  
 
'''Solution or workaround:'''  
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'''Github issue''':  
 
'''Github issue''':  
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==en:energy-value-in-kcal-does-not-match-value-in-kj==
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===When energy values are low (1-10 Kcal)===
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When energy values are low, there are often matching issues between the energy in Kcal and KJ. This often because producers are rounding the values.
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Eg.
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*https://world.openfoodfacts.org/product/3502110008459: In this example, 1 Kcal (rounded) => 6 KJ. Because 6 / 4.2 = '''1.428''', the producer is probably '''rounding 1.42 to 1'''.
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*https://world.openfoodfacts.org/product/3564700460887
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'''Solution or workaround''': use the values per serving if the serving is higher than 100g/100ml.
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'''Action''': -
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'''Github issue''': [https://github.com/openfoodfacts/openfoodfacts-server/issues/7811 energy-value-in-kcal-does-not-match-value-in-kj: false positive for low values]
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===When?===
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Error maybe?
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Eg.
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*https://world.openfoodfacts.org/product/3770014034205
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'''Solution or workaround''': ?
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'''Action''': -
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'''Github issue''': [https://github.com/openfoodfacts/openfoodfacts-server/issues/7811 energy-value-in-kcal-does-not-match-value-in-kj: false positive for low values]
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==en:energy-value-in-kcal-does-not-match-value-computed-from-other-nutrients==
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===When it is a beer?===
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Eg.
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*https://world.openfoodfacts.org/product/0018200250002
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'''Solution or workaround''': delete?
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'''Action''': -
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'''Github issue''':
 
[[Category:Data quality]]
 
[[Category:Data quality]]

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