The washed process (Lavado), is a process in which the cherry flesh is fully washed from the bean before being dried.
The honey process (Miel) occurs when the flesh is just partially removed from the fruit, leaving the sweet mucilage to rest on the bean before drying. This process creates additional flavor tones, often sweetly structured.
The natural process is performed by leaving the cherry flesh to dry completely on the coffee bean. This is a more time consuming and expensive process. When made into a light to medium roast, it unleashes an amazing flavor.