8th and Ocean Beachfront Vacation Rental Villa in Rincon Puerto Rico is located close to what can be argued to be the best market in Rincon. They opened around 2010 and are definately a friendly customer-service driven market.
Edward's Co-op Food Mart carries gluten-free and healthy-choose items you may take for granted when you live on the mainland. They have a large selection of wines and beer (including American Micros).
If you are looking for something you can't find, especially fish or meat, don't hesitate to ask an employee. Not everyone speaks English at Edward's but they will find someone who does to help you!
Directions: Walk or drive back up 14th Street (Cll 14) to the 115 (the main road you came in on), turn right onto 115 and immediately turn left into the shopping plaza. Edward's is in the shopping plaza almost directly across from 14th Street (Cll 14). They have a sign on the driveway.