Difference between revisions of "Data quality issues which can't be fixed"

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(en:energy-value-in-kcal-does-not-match-value-in-kj : documentation and solution)
(en:energy-value-in-kcal-does-not-match-value-in-kj: add github issue)
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'''Solution or workaround''': use the values per serving if the serving is higher than 100g/100ml.  
 
'''Solution or workaround''': use the values per serving if the serving is higher than 100g/100ml.  
  
'''Action''':
+
'''Action''': -
  
'''Github issue''':   
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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]  
 
   
 
   
 
[[Category:Data quality]]
 
[[Category:Data quality]]

Revision as of 11:36, 7 December 2022

en:nutrition-value-over-105-fruits-vegetables-nuts-estimate-from-ingredients

When the package contains more than one product

When the package contains more than one product, each product can have its own list of ingredients. Then fruits and vegetables estimated value from ingredient goes over 105.

Eg.:

Solution or workaround: none.

Action: the products can be tagged with ingredient_list:multiple.

Github issue: [to be created?]

en:nutrition-value-total-over-105

When the product density is greater than the water

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

Solution or workaround: [to be discussed]

Action: the products can be tagged with nutrition_facts:per_ml

Github issue: [to be created?]

en:nutrition-value-over-105-en-dry-residue-at-180-c

When? The product is water?

Eg. https://world.openfoodfacts.org/product/4056489194446

Solution or workaround: should we check the box "Nutrition facts are not specified on the product."?

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

When? Sugar or equivalents?

Eg.:

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.

Action: the product could be tagged with use data_quality:lack_of_data_to_compute_energy ????

Github issue: https://github.com/openfoodfacts/openfoodfacts-server/issues/7789

When? Soup or equivalents?

Eg.:

Solution or workaround:

Action:

Github issue:

When? Vinegar or equivalents?

Eg. https://world.openfoodfacts.org/product/3182384011012

Solution or workaround:

Action:

Github issue:

When? Tea or equivalents?

Eg. https://world.openfoodfacts.org/product/4056489024354

Solution or workaround:

Action:

Github issue:

When? Can not see the nutrition table in the pictures

Eg. https://world.openfoodfacts.org/product/8480000325242/aroma-de-vainilla-hacendado

Solution or workaround: no workaround. Don't copy data from other sources. Our data should be based on our photos.

Action:

  • erase all nutrition facts' values.
  • remove nutrition facts' picture if it is not correct.

Github issue: -

When?

Eg. https://world.openfoodfacts.org/product/4056489123514/

Solution or workaround:

Action:

Github issue:

en:energy-value-in-kcal-does-not-match-value-in-kj

When energy values are low (1-10 Kcal)

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.

Eg.

Solution or workaround: use the values per serving if the serving is higher than 100g/100ml.

Action: -

Github issue: energy-value-in-kcal-does-not-match-value-in-kj: false positive for low values