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Retail dry edible beans are packaged in polyethylene film using a form‐fill seal machine. This packaging system uses a reel of polyethylene film and either forms it into a tube and then seals and fills it at regular intervals or folds it lengthwise and seals it at right angles to the fold to form a series of pockets (sachets), which are filled and closed (Uebersax et al. 1996). This package has good transparency and printability and is compliant with regulatory requirements, therefore allowing consumers to examine the color and quality appearance of the product. ssss1 shows a commercial small bag bean packaging machine.

Dry edible beans may be filled into 100‐pound sacks, which are sewn at the point of filling to ensure integrity of the package. Bag dimensions are critical to ensure sufficient volume and shape and dictate the final dimension of the filled bean bag. Typically, bean bags are 21 × 37 inches to enable sufficient stackability and nesting of the bags, thus avoiding slippage and shifting during shipment. Some large, colored seeded beans (pintos, cranberries, and kidney beans) require larger bag dimensions than may be suitable for smaller seeded classes, e.g., navy and black beans (Roberston and Frazier 1978).