The hills immediately north and east of Heredia are coffee country — small farms growing arabica at altitude, with the volcanic soil and consistent rainfall that produces some of Costa Rica's best beans. Several farms in the area around Santo Domingo, San Isidro, and the slopes leading toward Barva offer half-day tours that cover the growing, harvesting, processing, and roasting cycle.
Tours are typically one to three hours and end with tastings of coffee made by various methods — from traditional colador (cloth filter drip) to espresso. The season runs roughly from November to February when the red cherries are ready to harvest; tours in season often include picking, which is the most memorable part. Out of season, the processing and tasting elements remain. Look for tours offered by smaller farms rather than large commercial operations — the experience is more personal and the coffee is usually better.