| ≥1 piece |
our freezer is using the liquid nitrogen as the freezing medium, C au se the liquid nitrogen quick freezer can realize ultra low temeprature cryogenic quick freezing, it also realize part of the glass transition of frozen food,can maximize the return to original state of fresh and original nutrients, greatly improved the quality of frozen food after defrost. greatly improved the quality of frozen food, so in the quick-freezing industry shows the unique vitality.
Compared with other frozen method, liquid nitrogen frozen has the following obvious advantages:
(1) fast freezing time (freezing rate than the general method about 30 to 40 times faster) : using liquid nitrogen frozen, can make the food quickly through 0 ℃ ~ 5 ℃ maximum ice crystals growth bands, food researchers have made a beneficial attempt in this respect.
(2) keep food quality: due to the liquid nitrogen frozen time is short, the liquid nitrogen frozen foods can maximize keep color, aroma, taste and nutritional value before processing.
(3) material dry consumption is very small: general freeze dry weight and cost for 5 ~ 15%, and liquid nitrogen frozen can reduce to 0.25 ~ 0.5%.