The harvest time of corn is about 5 days later than that of sweet corn, i.e. pollination 25 ~ 28 days. Due to climate or poor treatment, the maturity of corn may be inconsistent, so it is required to harvest in batches and stages. The corn cob shall be directly put into the basket or pocket after being broken, and shall not be thrown on the ground, and shall be loaded and unloaded with care during loading, unloading and transportation. Moreover, the corn bracts shall be green, with no moth holes on the surface, and the seeds shall be placed evenly and fully. The color of sweet corn shall be light yellow to yellow, and waxy corn shall be the normal color when the variety is mature without variegated grains. Hengteng has standardized production of quick-frozen sweet corn. It has a good domestic quick-frozen production line for fruit and vegetable processing, 6 quick-frozen rooms, an 8000 ton low-temperature storage warehouse, and 1500 square meters of office buildings and dormitories. The production and processing workshop is designed and built according to various standards on vegetables, fruits, food hygiene, epidemic prevention, export trade, processing technology, etc., and the rough processing and fine processing are separated according to the requirements of the production and processing standards of agricultural and sideline products. The closed production is implemented. The processing area is spacious, bright and the environment is excellent, which meets the requirements of high standards of hygiene and epidemic prevention.