How to document sampling?

Someone just asked how to document the moments she takes samples mid-roast using the tryer?

How close?

Ever wondered how close you duplicated a previous roast profile? A standard measure in statistics to express the average error between a curve and its target is know as Mean Squared Error (MSE) which computes the average of the squares of the single discrepancies between the data values and their targets.

weight • volume • density

Knowing the density of your raw beans is key to adjust your roast profile. Knowing the density of roasted beans is important for successful blending. Keeping the bean density of a product constant helps to keep your customers happy.