UK sandwich eating produces same CO2 as 'millions of cars'

2018-01-26 05:16


Multimedia   ·   User Galleries   ·   News in Pictures Send us your pictures  ·  Send us your stories

London – Britain's annual sandwich consumption produces the same amount of carbon dioxide as more than eight million cars, according to a study published on Thursday.

Around 11.5 billion sandwiches are consumed each year in Britain, half of which are homemade and half bought, according to the British Sandwich Association (BSA).

This annual consumption "generates, on average, 9.5 million tonnes of CO2, equivalent to the annual use of 8.6 million cars," said Adisa Azapagic, professor at Manchester University, which produced the study.

The researchers studied the carbon footprint of 40 different fillings.

Mass-produced sandwiches containing pork (bacon, ham or sausage) were found to have the largest footprint, followed by shop-bought varieties containing cheese or prawn.

The most carbon-intensive filling was found to be the shop-bought "all-day breakfast", comprising egg, bacon and sausage.

Producing this generates 1 441g of carbon dioxide, equivalent to the CO2 emissions produced by a 19km car journey.

The "cleanest" was found to be homemade ham and cheese, with the production, storage, packaging and transport of shop-sold sandwiches accounting for their increased environmental impact.

Researchers estimate that the carbon footprint of sandwiches could be reduced by half by changing recipes and packaging, recycling waste and extending their shelf life.

"We need to change the labelling of food to increase the use-by date as these are usually quite conservative," said Azapagic.

"Given that sandwiches are a staple of the British diet as well as their significant market share in the food sector, it is important to understand the contribution from this sector to the emissions of greenhouse gases," she added.

Read more on:    uk  |  co2 emissions

Join the conversation! encourages commentary submitted via MyNews24. Contributions of 200 words or more will be considered for publication.

We reserve editorial discretion to decide what will be published.
Read our comments policy for guidelines on contributions.

Inside News24

Traffic Alerts
There are new stories on the homepage. Click here to see them.


Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.

Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire network.


Location Settings

News24 allows you to edit the display of certain components based on a location. If you wish to personalise the page based on your preferences, please select a location for each component and click "Submit" in order for the changes to take affect.

Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.