Potrero Grande Small Producers
Potrero Grande is a microregion at the top of Volcan de Santa Ana, between Palo Campana and Buenos Aires. At Potrero they have not planted many hybrids as they have elsewhere (a lot of Catimor in Buenos Aires) so the general quality of the cup is very good. Plus, this year we've seen much better picking in general at Potrero compared to Buenos Aires.
The Rio Zarco mill has a receiving station in the middle of Potrero Grande, making it easy for farmers to drop off their bags after they're done picking. Here we have an initial screening and all bags are tagged with I.D.s telling us the farm, variety and quality of picking.
When the bags arrive at the Rio Zarco mill, they are inspected by eye and by a computer program which sets parameters of how little green, dry and floating cherries are allowed. Bags with too much green, dry or floaters end up in a generic coffee lot. Those that qualify (less than 3% total green/floaters/dry) go into the daily Potrero Grande lot. And some very special farms are processed separately as Potrero Grande microlots.