Understand the choice
Define each component by lot and roast, then specify its share of total mass. Weigh components instead of estimating by scoops. Record whether you blend before or after roasting because the processes are not interchangeable.
Put it into practice
Taste the components separately and the blend under the same conditions. The blend calculator is arithmetic; it does not predict chemical composition or sensory quality.
Keep the conversation useful
Share your actual recipe or experience, identify the coffee or equipment and explain what changed. A clear question with measurements makes the discussion easier for others to answer.