Mechanical dryers are used as an alternative to sun-drying coffee on a patio, either due to poor weather, or when the patio does not have enough capacity. It is not considered as good as sun-drying coffee. The drum type dryer, called a GuardiolaGuardiola is a term for a drum type coffee dryer, that brings down the moisture level over a period of 3 days or so. It is used as..., is considered better than the vertical dryers.
