Dark roasted coffee will usually remove most of the differences that were in the original beans. To notice the details you will have to use light to medium roas

Dark roasted coffee will usually remove most of the differences that were in the original beans. To notice the details you will have to use light to medium roasted beans and be reasonably good at preparing the coffee well. There are many parameters you can adjust while brewing coffee (not all methods expose those parameters), and this can affect the taste rather significantly.