The fresh-keeping method of liquid nitrogen quick-frozen durian

2020-07-28 17:34:11

The fresh-keeping method of liquid nitrogen quick-frozen durian

    Liquid nitrogen quick freezing is currently a fast, environmentally friendly, and safe quick freezing method; the ultra-low temperature of liquid nitrogen can quickly cool food and freeze quickly; while liquid nitrogen is inert, will not react with food, and will not affect the quality and taste of food It will have any impact, and after the liquid nitrogen is vaporized, it will emit gas, which is harmless to the human body and will not pollute the environment. In the face of increasingly picky modern people, the original, delicious quick-frozen durian can even move people's stomachs. Quick-freezing preservation has many advantages. For example, it can ensure that the durian meat is peeled in a natural mature state without any additives, which is healthy and safe.

    Liquid nitrogen quick-frozen durian preservation is a very rigorous technology. After picking durians, they must be eaten within 8 hours or quickly frozen, otherwise the fruits will easily ferment naturally and rot after producing a lot of water. Under normal circumstances, durians are stored in a low-temperature freezer at -60°C for about three hours after they hit the ground for quick freezing, and after one hour of rapid freezing, they are stored in a cold room at -18°C to -22°C. In this way, the richness and sweetness of durian can be fully preserved. It is also a good storage method if the durian pulp is taken out directly for vacuum packaging and freezing, but the technology is more complicated.

    Frozen durian has an important advantage for food. The durian meat taken from the freezer is slightly thawed, and it smells not very heavy, and tastes like ice cream. So now frozen durians are not only in the production area. It gradually became popular, and it became popular among durian lovers.