Coffee Blend - it's all in the blend
A coffee blend is a mixture of different coffees. Depending on the desired taste and aroma, different coffee varieties (e.g. Arabica and Robusta) or beans of the same coffee variety from different regions or countries (e.g. 100% Arabica) are blended.
Each coffee roaster has its own recipes, which are understandably well-guarded. The art is to blend the blend in such a way that the perfect degree of roasting is achieved in all beans at the same time and all flavors - harmoniously matched - are teased out.
Why are coffees blended?
The main reason is that it is easier to ensure consistent quality and taste in coffee blends. This is because, like wine, coffee is a natural product. Again, not every harvest yields the same quality.
To compensate for variations in taste, the roast master must regularly test how the beans behave during the roasting process. This requires a great deal of experience and a good feel for the beans.
Which varieties are blended?
The most common blends are pure Arabica blends or Arabica and Robusta blends.
But beware: The more coffee varieties are added to a blend, the faster the blends resemble each other in taste. The individual taste of each coffee variety is lost. This is how coffee becomes interchangeable.
Another tip:
If a coffee dealer can't or won't answer the question of where the coffee comes from, hands off. A good coffee dealer will answer your question. However - and this brings us back to recipes - not the percentage composition. That remains the secret of every coffee roaster.