An app that gives the carbon footprint for a tin of beans - well almost

At the end of last week’s post I said that I would talk about an app that gives an indication of the carbon footprint for individual food items you buy in the supermarket. Given that I need to reduce my carbon emissions from about 6,000 kg to 2,500 kg of CO2 a year – a target we all need to hit by 2030 apparently – making better purchasing choices is clearly important. Eating is something that we all have to do and our eating habits have a big impact on CO2 emissions.

As I said last time, I love data. I’m also the sort of person who loves apps that track things. Whether it’s the number of steps taken in a day, the quality of my sleep at night or the calories consumed through eating too many chocolate biscuits - I love a good app. I appreciate that I might not be representative of the whole population in this regard.

Anyway – back to the app. This discovery came through the same Guardian article mentioned last time: ‘Sustainable gin and family-sized crisps! My week eating a climatarian diet’, which you can read here.

When I downloaded the app a few weeks ago it was called ‘Giki Badges’ but I see, through an update, that it has been rebranded as ‘Impact Score Shopping’. Their logo looks like this.

Using the app simply involves pointing it at the barcode on the food item you are interested in and then the app will tell you how many badges that product has been awarded. The maximum number of badges available (that I have seen) is seven but not all badges are necessarily available for all products. One product might be awarded 3 out of 5 badges, another 2 out of 3. The seven badges/categories I’ve seen are: free from additives, healthier option, better packaging, low carbon footprint, plant based, organic and animal welfare.

As mentioned before it is very difficult to work out the exact carbon footprint of the tin of beans that is sitting on the shelf in my kitchen. All tins with that same packaging will get the same score – but their actual carbon footprint will be impacted by things like the distance travelled from the factory to the depot, then transport to individual shops, then whether I walked to the shops, drove to the shops or had my groceries delivered.

The carbon footprint badge comes in low, medium and high categories. For me, the purpose of this whole exercise is to get informed, so that I have a little more to go on than the ‘eat local, in season and avoid cows’ generalisation. 

So whilst working out the exact impact of each individual product is near on impossible, it is possible to get an idea of products that are better or worse for the environment in terms of their carbon footprint.

Another thing the app allows you to do is to view alternative products – products that may be healthier for you, healthier for the planet or even both.

Obviously, for reasons already stated, it is not possible to know the impact of switching from one product to another in terms of kg of CO2 per year. Only a low, medium or high rating is given. But eating less high carbon footprint products and more low carbon footprint products is obviously going to be an improvement.

Next time I’ll have a look at some of the products in my cupboards and see how they rate. I'll have a look at some of the recipes/meals I regularly cook - and see how they measure up in terms of their environmental credentials.