"NFC" is the abbreviation of "NotFrom Concentrate" in English, and it means "non-concentrated juice" in Chinese, that is, not from concentrate 100% juice. "NFC juice" is the fruit that is directly pasteurized after being squeezed and processed in a low temperature environment. Because this kind of freshly squeezed fruit juice is heated for a short time during processing, the nutritional loss is less, and the original flavor of fresh fruit is better maintained. The disadvantage of this fruit juice is that it is suitable for low temperature storage and its shelf life is relatively short.

In addition, because it is really pure fruit juice, and it is not easy to store, the cost is also high. At present, most of the fruit juice drinks commonly seen in the market are recovered from concentrated fruit juice, which has serious nutrient loss. Some merchants also play the edge ball and claim to be "fruit juice content 100%", but this statement is not appropriate after further study. The advantage of reduced juice is that it is easy to store, and the price is relatively low, which is generally acceptable to the public.

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Difficulties in technology and technical equipment of processing "NFC juice"

1, it is required that the processing equipment of "NFC juice technology" can be moved to the place of origin for processing, so as to ensure that the raw fruit is fresh and intact. Generally, it is required that the time from harvesting to processing into "NFC juice" should not exceed 6-7 hours, so as to ensure the quality and nutrition of NFC freshly squeezed juice;

2. When processing berry "NFC juice", the raw fruit should not be cleaned, so the processing equipment of "NFC juice technology" must be designed with corresponding dust removal, impurity removal and filtration devices;

3. The traditional juicer can't adapt to the processing of NFC fruit and vegetable juice with multiple varieties (nuts, drupes and berries) nearby, so it is necessary to develop a new type of multi-variety high-efficiency anti-oxidation juicer group;

4. Because the processing equipment of "NFC juice" is mostly processed near the place of origin, the wastewater treatment should be energy-saving and environmentally friendly, so the cleaning process and equipment without adding acid and lye should be designed;

5. Because "NFC juice" contains pulp, its fluidity and heat conduction are poor, so it is necessary to design new heat conduction and sterilization technology and equipment;

6. Because the processing equipment of "NFC juice" should be moved and processed in different places according to different seasons, different regions and different fresh fruits and vegetables, it is required that the heat source cannot work under pressure, and new energy-saving and environmental-friendly heat sources and corresponding heating equipment should be developed;

7. Because the sugar content and acidity of "NFC juice" are very suitable for bacterial reproduction, a new type of aseptic storage and filling equipment for "NFC juice" should be developed in addition to the complete sterilization in the processing.