CoffeeData
Coffee, a drink consumed and enjoyed by many people across the globe. But what is a delicious cup of coffee and from what part of the world does it originate from? That is exactly the question we'll try to clarify on this page.
We have gathered data from the Coffee Quality Institute(CQI) which is a non-profit organization that works to improve the quality and value of coffee worldwide. From these data we have formed interesting visualizations that try to shine a light on the correlation between various factors of the growing, roasting and processing of coffee beans.
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Global Coffee Origins
We observe the global diversity of coffee production, with samples sourced from over 20 countries. The data shows the geographical spread of coffee cultivation, from traditional producers like Colombia, Ethiopia, and Thailand to regions such as Taiwan and Vietnam. The data shows that most of the coffee is produced near the equator, where the climate is ideal for coffee cultivation. Keep in mind that this map does not show what countries export the most coffee but rather where CQI has taken it's samples from. The fact that CQI has offices base in Thailand and Taiwan explains why most of their samples come from those countries.
Coffee Quality vs External Factors
A cup of coffee can be described by a bunch of different factors like sweetness, acidity, uniformity, and more. But a question one could ask is, what is the effect of external factors on the flavor profile of the harvested beans? This graph aims to show this relationship. We observe that there is a slight increase in quality parameters as altitude increases, while the quality tends to decrease when the moisture percentage increases.
Simply pick a quality parameter and an external factor and observe the relationship between the two.
If you want to learn more about what each quality parameter means, visit the CQI page.
Coffee Quality vs Categorical Factors
Beyond numeric factors like altitude and moisture, categorical attributes such as processing method and variety also impact coffee quality. This visualization shows how different categorical factors relate to quality scores, helping to identify which varieties or processing methods tend to produce higher-rated coffees.
Flavour overview per country
The radar chart provides a visual representation of the flavor profile of coffee beans from different countries. Each axis represents a specific quality parameter. Each parameter is scored on a scale of 10. By comparing multiple countries, we can observe how their flavor profiles differ and identify unique characteristics.
Our parameters don't seem to differ that much between countries, this is probably due to the fact that all samples passed the quality control of the CQI which makes their overall quality more or less the same.
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Correlation between coffee parameters
You might be wondering if some properties of the coffee are corelated with each other. That is why we included this correlation matrix to showcase this! The matrix shows how these parameters change compared to one another in the following sense: If parameter A increases, will parameter B also increase?
A positive value shows that linear relation between 2 parameters e.g. they both increase or decrease with respect to one another. A negative value on the other hands shows an inverse relationship meaning that if one parameter icreases the other decreases and vice versa.