Generally in coffee discussions we generalize that Arabica coffee is good and Robusta coffee is bad ... let's say right away that this statement is only partially true because several exceptions creep into the discourse.
Robusta coffees, which are generally sour, bitter, and inferior in quality, however, have some truly egregious origins as quality. Among Arabica coffees, on the other hand, which in everyone's eyes are considered all good, it is, on the other hand, very easy to find low and poor quality on the market.
This is to say that if a blend is declared "100% Arabica" it does not mean that it will surely be good or of high quality. At most you will be assured of a lower caffeine content because Arabica certainly contain less than Robusta.
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