Freeze-dried food is to sublimate the moisture of fresh food after quick freezing from solid to the gaseous state through freeze-dried food production equipment (referred to as a food freeze-drying machine) under vacuum and low-temperature conditions. , so as to dehydrate and dry the food.
The freeze-dried food is sealed and packaged without refrigeration equipment and can be stored for a long time at room temperature without deterioration. After rehydration, it is like fresh food. At present, the world food industry presents three major trends: one is the popularity of green food day. This is due to the deteriorating global environmental conditions, the widespread abuse of additives, and the increased awareness of people's self-protection, so pollution-free and additive-free green foods are favored; second, convenience foods are very popular. As people's work rhythm and life rhythm are accelerated, and they travel frequently, fast and convenient food has become the first choice; thirdly, food that is conducive to health care is more popular. This is due to the growing recognition that foods such as preserved, smoked, and canned foods that can be stored for long periods of time may be carcinogenic or nutritionally compromised, and that only freeze-dried foods can replace them. Frozen food is green, convenient, and beneficial to health care, which is in line with the three major trends in food development.
Features of freeze-dried food production equipment:
1. The freeze-drying box and partition are made in strict accordance with industry requirements. The cylinder is made of grade 304 stainless steel, and the interior is mirror-polished. The production process and requirements are higher than the current domestic conventional food freeze dryer manufacturers;
2. The box body is integrated with cold traps, the front box, and the rear trap is designed, and the structure is compact. It is equipped with an observation window, and the observation window is equipped with a lighting device, which is convenient for observing the situation in the box. The structure or form is designed to be easy to clean and without hygienic dead corners;
3. The clapboard can be customized according to customer needs, and an aluminum profile or 304 stainless steel can be selected. The aluminum plate is extruded and drawn, the surface is flat and smooth, and the heat transfer performance is good. The 304 stainless steel plate layer is processed by the surface brushed square steel profile, which is flat and easy to clean and has good hygiene.
4. The cold trap water capture coil is made of clean stainless steel. Integral structure or split structure can be selected according to customer needs.
5. The components of the refrigeration system are configured according to high-standard imported brands, with strong refrigeration capacity, fast cooling speed, and stable and reliable performance;
6. The vacuum system provides a variety of vacuum pump combinations according to customer needs.
7. Adopt PLC imported brand control system, which is convenient to store data and operate more easily. It has two control modes, automatic/manual, and the control mode can be switched arbitrarily. The process setting can be set in multiple groups; the formula can be modified at any time during the drying process, and steps can be skipped at will;
8. Use soaking or steam defrosting to quickly defrost and clean.
