Quick frozen corn cobs can be divided into different types, such as whole ears, segments and sweet corn kernels. The disposal method is to quickly freeze the newly harvested ears or shoveled grains at a temperature below - 35 ° C and refrigerate them after packaging. Regardless of the planting season, quick-frozen corn cobs can be supplied to the market all year round. When eaten after freezing, it can adhere to the shape, color and flavor before freezing.

Common freezing procedures are:

The harvested ears were classified according to the length and weight of the ears, peeled and washed to remove the residual filaments, boiled for 12 minutes, and then cooled in water at 8 ° C. Blow dry the outside water to avoid frost on the outside of the ear when it freezes. Enter the refrigerator and freeze at - 35 ° C for 8-10 hours, or apply quick freezing at - 45 ° C for 30-45 minutes to complete quick freezing. Package the quick-frozen sweet corn and store it in the refrigerator.

The quick-frozen corn cob with cross-section shape is easy to eat and welcomed by customers. The cutting size is 5 to 7 cm. Shovel is added to the processing demand of granular quick-frozen sweet corn.

In order to make quick-frozen corn cobs, the raw materials of quick-frozen corn cobs are better than ordinary sweet corn. When making granular quick-frozen sweet corn, it can be mixed with peas and carrots to make three in one quick-frozen vegetables, which has complete color, aroma and taste and rich nutritional value.

Flexible packaging can also be used to reduce costs. After harvesting sweet corn, if it is kept at room temperature, the sugar content will drop rapidly. Usually, it can land about 2% a day. Therefore, the harvested sweet corn should be disposed of as soon as possible and within 12 hours. If stored at 0 ℃ after harvest, the sugar content can be well maintained when removing bracts, but the grain color will deteriorate after 5-7 days. In the condition of tablets, the sugar content will drop sharply after 3 days of storage. If the harvest is large and cannot be disposed of in time, it can be stored temporarily in a refrigerator at 0 ° C for 3 to 4 days after the tablets are removed.

After freezing and refrigeration, the contents of main amino acids such as vitamin C, sugar, lysine and tryptophan of quick-frozen corn cob decreased slightly, which was basically close to fresh ears, and the sensory quality and processing quality also met the customer's requirements. In the peak season, especially when the market demand is strong on New Year's day and spring, frozen sweet corn can be sold by ear in shopping malls. The refrigeration time of quick-frozen sweet corn shall not exceed 5 months. Taking new year's day and spring as the boundary, the expiration of the shelf life will affect the edible quality of quick-frozen corn cobs.