In this day and age, how prevalent is the lazy economy? In terms of food, I don’t want to wash vegetables, so clean vegetables appear in the market; I don’t want to make food, so there is takeaway; I don’t want to boil hot water when I eat convenience foods, so self-heating convenience foods can be "cooked" with cold water. Meals...Many foods are focused on the "lazy economy" and are developing in a direction that can be solved in minutes without going out of the house and moving their fingers.

In the food industry, fast food is an important part of the lazy economy. Looking at the fast food industry today, although products such as instant noodles meet the economic characteristics of lazy people, people are gradually staying away due to unhealthy reasons. The vacuum freeze-drying process has been popular in recent years as a process that not only makes food easy to eat, but also retains food nutrients to the maximum. Judging from the products on the market, the vacuum freeze-drying process is widely used in the drying of fruits, the drying of instant drinks, and instant meal replacement foods.

Compared with fresh fruits that need to be cleaned and peeled, the convenience of making dried fruits is self-evident. Research data shows that the vacuum freeze-drying equipment used for fruit drying compares with the previous methods of hot-air circulation drying and sun drying. The nutrients that vacuum freeze-drying can retain are basically the same as fresh fruits. Because vacuum freeze-drying is to sublime water when the fruit is frozen, some heat-sensitive ingredients and active ingredients are retained, and the oxidation of the fruit during the drying process is also avoided.

The simplicity of instant drinks has long been recognized by the public. Take coffee as an example. Hand-ground coffee needs to grind the coffee beans into powder and then steam it to drink. Even if you go to a coffee shop, you need to wait for the clerk to make it. The instant coffee can be brewed immediately, eliminating the long waiting time. However, the growth of instant coffee has not been smooth sailing. There have been rumors that the aroma of instant coffee will disappear during the processing process, and chemical flavors are needed to create the aroma. Instant coffee makes people afraid to avoid it for a while.

In the original instant coffee production process, the coffee beans are first stirred and roasted, and then the coffee beans are ground into a coarse powder using a grinder, and then the flavor is squeezed by high-pressure hot steam, and then heated and extracted, concentrated, and then entered into the freezer for further extraction. The fineness of the coffee particles after entering the freezer for extraction is not enough and needs to be further crushed, but at this time there is too much moisture in the coffee and needs to be dried. In the past, spray dryers and other equipment would melt the frozen coffee during the drying process and lose its aroma. While the vacuum freeze dryer can keep the coffee frozen state unchanged during the drying process, the flavor loss is less, and there is no need to add flavors to make the aroma.

Instant meal replacement foods are often seen in people's breakfast, afternoon tea and other moments, but now they have gradually extended to people's daily diet. With the maturity of vacuum freeze-drying technology, freeze-dried noodles, freeze-dried millet porridge, freeze-dried red dates, lotus seeds and white fungus soup have appeared one after another. The use of vacuum freeze-drying equipment in these products allows more healthy ingredients in the finished product to be retained and a higher degree of reduction, so it is very popular.

Take millet porridge as an example. It is necessary to boil millet porridge for use in daily life. However, freeze-dried millet porridge uses high-pressure steaming, split-type low-temperature braising and other processes to mature the relevant ingredients during production, before crushing and granulating. It is necessary to remove the moisture of various ingredients in the millet porridge, and then vacuum freeze-drying equipment is needed. It is understood that the "Instant Liaoshen Millet Congee" developed by a student of Zhejiang Gongshang University uses vacuum freeze-drying equipment to retain the nutrients and aroma of the raw sea cucumber and millet, and the finished product reproduces the traditional healthy and nutritious taste.

With the acceleration of people's living standards, more and more people realize that time is precious. People buy ready-made nutritious food instead of making them themselves, so as to get more time to do what they want to do. Under the guidance of this kind of thinking, vacuum freeze-drying equipment is bound to have more room for development in the future.