To answer this question, it is important to go through the following checklist:

Does my data cover the same part of the life cycle as what is displayed in the PS impact score? Is transport emission, energy use during preparation, for example, included or not included to arrive at a total CO2 emission?
Is my data at the same level of detail as the PS impact scores? Is this at ingredient level, at individual product level, or does it contain average scores per product category (such as the RIVM, for example)? The RIVM published scores for 250 product categories in 2021. This was a good first step, but it is now possible to make a more detailed assessment of sustainability. One product is not the same as another; a Black Angus hamburger is different from a half-and-half hamburger, and therefore needs a separate assessment. The PS impact score looks deeper than product category and looks at the ingredient composition of products, without the recipe being publicly known.
Is the country of origin included in the sustainability assessment?
Has my ingredient declaration been processed correctly? In the step of translating and dividing the declaration per ingredient, it can of course happen that this does not proceed entirely without errors. As a customer of the PS Impact Score, you can see which declaration has been used exactly for the calculation of the different variables and you can easily adjust this from here.
Have you completely filled in the percentages of the ingredients? The proportions of the ingredients are of course also crucial for calculating the impact and the other attributes. Products that appear more in the recipe naturally weigh more heavily in the impact. The ingredients that do not have a percentage are estimated by HowGood and may therefore differ from the actual percentages.

If after this checklist it is still not clear why the scores differ, please contact: psimpactscore@psinfoodservice.com.

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