​Until about a decade ago, coffee processing primarily utilized natural, honey, and washed methods, each of which offered a wide range of sensory qualities in the coffee. During these processes, fermentation occurs naturally through local microorganisms, including bacteria, yeasts, and fungi, which interact with the coffee mucilage. The metabolites produced by these microorganisms can penetrate the coffee seeds, resulting in two types of effects: beneficial ones, such as desirable organic acids, esters, alcohols, and sugars; and harmful ones, which include undesirable organic acids and toxins that can negatively impact the quality of the coffee beans.

​1. Classic Natural Fermentation

In the classic natural process, coffee cherries are picked and then dried with the fruit still on the bean. The fruit's sugars and pulp influence the flavour during drying. This method gives the coffee a fruity, sweet, full-bodied profile with rich, bold notes.

Our go-to flavour profile: We look for deep, fruity, and sometimes wine-like flavours. Most often, they have a heavy body and a rustic profile but with a sweet aftertaste.

​The recent coffee harvest in Burundi and Rwanda concluded at the end of July, directing in the yearly challenge of selecting our next partner and origin. While the cup quality is paramount, we recognize that other critical factors influence this decision. To minimize any external biases, we rely on a meticulous process of blind analysis and cupping.

​It was the French who attempted to introduce coffee three times from Yemen to Bourbon Island (now La Réunion), in 1708, 1715 and 1718. Genetic studies have confirmed that only a small number of plants from the second introduction and some from the third introduction they were successful. Until the middle of the 19th century, Bourbon coffee did not leave the island.

​Both economies are overwhelmingly agricultural, and widely diversified farming is practiced throughout their territories. Arabica coffee is the main commercial crop and constitutes the main export of both countries. Being much more important in terms of total foreign exchange earnings for Burundi than for Rwanda, because the latter economy is more developed and diversified.

​The current times are stormy, for no one in the world it should be a mystery that climate change is affecting our lives in a radical way. To no one either, it should be a mystery that inflation is hitting the pockets of the world's poorest people, and this particularly impacts coffee farmers who, despite record coffee prices, have not seen their income levels improve. Finally, due to the war in Ukraine, the shortage of fertilizers could cause a deficit of almost 20% in coffee production in 2022, in addition to the food crisis that it is already affecting various parts of Africa.

​It is always important to remember that just 27 years ago, Rwanda was in the midst of one of the most horrible tragedies humanity has ever seen. The genocide against the Tutsi population killed almost a million people and displaced two million more. These events shook this small country and almost wiped out the entire coffee industry.
 
Remarkably since then, Rwanda has enjoyed strong rates of economic growth, creating new business prospects and lifting many people out of poverty. Thanks to an efficient government actively working to develop the economy and reform the financial and business sectors, Rwandan coffee has become a very important player, contributing significantly to foreign exchange earnings and the monetization of the rural economy. In 2019, agriculture accounted for 29% of Rwanda's economy, and coffee accounted for a third of this income, with 75% of the total population working in the agricultural sector.

​Each year we are receiving more and more samples from producers and cooperatives in many origins around the world. This is very exciting, but also represents a challenge in terms of time and resources we need to dedicate to analyze and evaluate each of them fairly and effectively.

​Finally, evaluation through blind cupping allows us to judge the potential, identify the defects and select the best samples. It is the most influential tool when deciding which coffees will be travelling to our warehouse and going into your roasters very soon.

Enjoy your Burundi coffee!

​Potato defect, quakers, coffee berry disease, immature cherries, anthracnose, etc. All these are potential threats to your wonderful Rwanda, Burundi or Congo cup of coffee.
 
But how can we get rid of them? Or cut to a minimum the chances of getting a bad bean into so much goodness?
 
Some cooperatives in Rwanda are adopting this unique practice of hand-sorting wet parchment after being washed and fermented.
 
Some defective beans can be visually detected more easily when the parchment is slightly transparent with moisture. It is another opportunity to eliminate immature green beans, floaters, quakers, beans with anthracnose and insect-damaged (Antestia Bug) coffee that can result in the awful "potato taste defect".
 
Also, the slow introduction of air before the sun in the drying process, helps to keep the parchment intact and without cracks. If we think that the parchment is a small protective layer that reduce the shock of too much heat in the bean, this initial drying phase in raised beds and under shade, promotes that these internal molecular changes happen slowly and progressively.