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Report
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The Food Footprint 100
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We are committed to driving change in the food system, and so we have for the first time, publicly released some of our data - the carbon footprint of 100 food items as consumed in the UK. Each footprint is accompanied by a data quality score that accounts for the amount and quality of underlying data supporting it.
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A cradle-to-retail system boundary includes the farm stage (including land-use change emissions and production of any inputs to the farm stage), processing, packaging, transport and retail impacts.
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A cradle-to-grave boundary includes the cradle-to-retail system, as well as impacts of end-mile transport from retail to place of consumption, preparation impacts including any home storage, and end-of-life disposal impacts of any food waste
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These footprints are for general items rather than those produced by a specific producer or bought at a given shop, and so should be seen as estimates rather than precise numbers for a given item in your shopping basket.
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Furthermore, we have averaged UK sourcing across the year, whereas the true footprint at a given time will vary according to seasonal sourcing and growing conditions, and their influence on the production method of the food in the shop. The full Foodsteps database can return impacts for items sourced from specific countries, rather than the average UK sourcing mix as is used for these 100 impacts. UK sourcing is estimated using international trade data and data on the volume of UK production by commodity.
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Footprints were taken from the Foodsteps database in December 2022 and are correct as of this date. Footprints are expressed in units of CO2 e, CO2 e refers to the fact that other greenhouse gases such as methane (CH4) have been converted to equivalent units of CO2 , using relative global warming potential factors over a 100-year time period.
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For items with a functional unit of 'as purchased', this refers to purchase from a retail shop, such as a supermarket. The weight as purchased does not include weight of packaging.
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For the life-cycle assessments of the 100 food items within this report, we have assumed all food items are purchased in local food stores by the end-consumers, stored in line with average shelf life recommendations, and cooked using standard home appliances.
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For more detail on the calculation method, as well as interesting highlights and analysis, please refer to the full report here.
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Any questions, please get in touch via our website.
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