Harvesting equipment should be adjusted accurately and carefully so kernel damage is prevented. Damaged kernels do not pop properly and will cause a discount on the grain market. Use of rotary combines may help prevent kernel damage. Depending on the proximity of the processing plant, the grain may be delivered directly at harvest or stored on the farm until delivery is requested. If on-farm storage is required, storage facilities must be clean and in good repair.
Aeration is essential for extended storage.
Generally, the delivery of the grain is at 14-15 percent moisture, so the storage and aeration facilities must be able to remove some grain moisture. Relative humidity of 70 percent will maintain the grain at the proper moisture. Kernels that are too dry will not pop properly. Remove dirt, cobs, and other foreign material at harvest. Marketing Popcorn is mainly produced under contracts which specify the hybrids and the acreages to be planted.