The proportion of a hectare of land needed to create an espresso can be calculated by dividing 7g (0.007kg) by 863kg. Multiply that proportion by the number of square centimetres in a hectare, which is one hundred thousand, and you get 811cm2 of land used to create an espresso.
But because it’s not enough to plant a tree, the tree has to be looked after and grow too, we can’t claim all the positive effects happen straight away, so we count the 10 years it takes an agroforest to mature. That means we divide the 811cm2 by 10. We won’t sell more than 863kg of coffee per hectare of land farmed in partnership with us so that your impact stays measurable.
In Detail
In Detail:
1 espresso = 7grams roasted coffee
7grams roasted coffee = 8.4 grams green coffee
At least 1040kg of green coffee is grown per hectare of land (often double this)
1040 kg is 1,040,000 grams
8.4 grams / 1,040,000 grams = the proportion of a hectare of land needed to grow an espresso = “P”
There are 100,000,000 square centimetres in a hectare = “H”
P x H = the area needed to grow an espresso
P x H = 811 sqcm
Divide by ten because it takes us this long to grow our agroforests
= 81 sqcm of earth changed per cup
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