Why is it important to have the right size burner to match the roaster?
A roaster with a burner that takes too long to heat the drum will end up baking the coffee resulting in a lifeless tasting coffee. A roaster with too powerful burners heat directly onto the drum at a much faster rate than the air flowing through the roaster. As drum temperature is usually not measured, the bean temperature probe will not pick up straightaway that the drum is too hot. The beans rolling on the drum will therefore roast relatively quickly resulting in the outside of the bean being roasted while leaving the inside of the bean relatively uncooked (like searing a stake), giving little depth of flavour. Tipping is also likely to occur. Roastmax Roasters have burners that are matched to the roaster capacity so that the air flowing through the drum rises at approximately the same rate as the drum.
