Potbelly hot pepper mix includes Serrano peppers and jalapeños mixed with red bell peppers, carrots, green olives, celery and cauliflower. The entire mix is packed in oil and closely resembles giardiniera.
A retail size of Potbelly hot peppers is available for purchase in each shop. Soybean oil is used to preserve the hot pepper mix as it hold it flavor more effectively than other oils. The serving size of the hot peppers is 2 tablespoons, and it contains 50 calories and 4.5 grams of fat per serving. In 2013, Chicago's Serious Eats awarded Potbelly 3rd Place for its brand of hot peppers.