Determining the appropriate roast level for a specific coffee bean variety is crucial to achieving the desired flavor profile. I start by carefully examining the beans and taking note of their natural characteristics such as acidity, sweetness, and body. This helps me determine the ideal roast level that will enhance these flavors without overpowering them. I also take into consideration the brewing method that will be used to extract the flavors from the beans. For example, an espresso roast will require a darker roast level compared to a pour-over or French press method. It's important to experiment with different roast levels to find the perfect balance of flavors for each specific coffee bean variety.