20 Aug 2013

ONE COFFEE PLEASE

6:30 am. The alarm rings. You need a coffee to wake up and become a person.
You go like a zombie to the kitchen decided to have a coffee.. but, which kind of coffee?

Instant coffee, filter coffee or capsule coffee?


-  Instant coffee is cheaper but tastes worse.
 - Filter coffee tastes better but you need to boil too much water and you will end throwing up the coffee once it gets cold.
 - Capsule coffee tastes even better and reduces the amount of green coffee needed but produces more packaging waste.
It is not an easy question and even more if you take into account that you are still asleep.



Maybe this study will help you to take the decision: http://www.lcacenter.org/LCA9/presentations/92.pdf

Where you can find the following comparison of the impact of the 3 coffees for many impact cathegories:

To summarize, the results of the LCA showed that instant coffee had a lower overall environmental footprint than filter and capsule coffee with the former having the worst environmental footprint of the three.


Instant coffee
Filter coffee
Capsule coffee
Energy consumption (MJ/cup)
1.25
2.25
1.85
Carbon footprint (gCO2eq/cup)
75
120
110
Water use (l/cup)
13
29
21

Almost all studies agree in stating that the main phases responsible of impacts are: 1) green coffee cultivation and processing and 2) machine use. Machine and packaging production, transport and waste treatment are secondary phases in terms of environmental impact.

However, as you know that not everything is B&W, you will find some other references stating different figures, because their inventory data is different or their hypothesis or their interests..:

“Like any system, portion coffee has advantages and disadvantages. The production of
the capsule has some impacts. However, the benefit of a portion system is actually that
it reduces waste of brewed coffee and reduces the amount of green coffee needed by
ensuring a better extraction. This means that depending on the different scenarios (for
example, how much prepared coffee is wasted in a traditional system or if the capsule
is recycled and an economic machine is used), a Nespresso coffee can have a lower
impact than a traditional one.“

For drinking one standard cup of coffee in the Netherlands we need about 140 litres of water, by far the largest part for growing the coffee plant.

Functional Unit: Provision of one cup of Tchibo Privat Kaffee Rarity Machare, made with 7g coffee powder  and 125ml of water => About 50-100 gCO2eq/cup

Some other references:
http://www.coffeemachinesreviews.co.uk/news/coffeemachines-news/dolce-gusto-coffee-machines-on-track-to-reduce-impact-on-environment

Finally.. do not forget about social and health issues.. in this blog we will focus on environmental aspects but I will encourage you to go deeper in all aspects of sustainability.

So, why not read the following link while having a coffee?
 http://www.coffeeresearch.org/politics/fairtrade.htm



4 comments:

  1. When you need a great cup of coffee don't go for instant coffee as it may not taste well.Give some time and have a great cup of filtered coffee.

    Thanks
    Finn Felton

    Kopi Luwak

    ReplyDelete
    Replies
    1. Thank you very much Finn for your comment.

      I really love good coffee and you probably have reason in terms of taste (however it depends on everyone's preferences).

      I was just giving some figures from other studies. It would be necessary an LCA of your coffe in order to evaluate its specific environmental profile.

      Delete
    2. That's why i have shared that filtered coffee is one of the best coffee you can enjoy any time.Well it takes time to prepare it but at the end you will get a great cup of coffee.

      Thanks
      Finn Felton

      Kopi Luwak

      Delete
  2. This comment has been removed by the author.

    ReplyDelete