Freeze-dried fruit and vegetable crisps (freeze-dried fruit and vegetable crisps) are made by freezing vegetables or fruits at low temperatures and then heating and drying them under vacuum conditions, so that the moisture formed by freezing in the food is The solid state directly changes to the gaseous state and is volatilized.

Fruits and vegetables have high nutritional value, but they are easy to deteriorate and rot. They are generally difficult to transport and store for a long time, and they have strong seasonal and regional characteristics. With the innovation and development of technology, fruits and vegetables are deeply processed to form dehydrated vegetables and freeze-dried fruits and vegetables to remove excess water contained in fruits and vegetables.

The chlorophyll and vitamins contained in fruits and vegetables can still be preserved. When eating, just immerse the fruits and vegetables in clean water to restore them, and retain the original color, nutrition and flavor of the fruits and vegetables. Freeze-dried fruit and vegetable crisps are becoming more and more popular. According to statistics from relevant departments, my country's exports of dehydrated vegetables have increased rapidly, especially their proportion in the total international output is also increasing.

Extended information:

As for fruit and vegetable crisps, one of the issues that society is most concerned about is: whether the nutritional content of fruit and vegetable crisps is lost after drying, dehydration and other processes.

In this regard, Ruan Guangfeng, director of the business department of the Kexin Food and Nutrition Information Exchange Center, said that after production processes such as drying and dehydration, some of the more delicate ingredients in vegetables and fruits will be destroyed, such as vitamin C. An ingredient that is unstable, not resistant to high temperatures, and easily destroyed.

But in addition to vitamin C, other relatively stable components in fruits and vegetables, such as protein, minerals, dietary fiber, sugar, and vitamins B and D, will be concentrated and retained. Especially rich in dietary fiber, calcium, iron, zinc, selenium and other minerals, after drying and dehydration, these nutrients in fruits and vegetables are concentrated. Therefore, fruit and vegetable crisps are also a good source of dietary fiber and mineral supplements.

From this perspective, eating fruit and vegetable crisps in moderation can absorb some nutrients and is beneficial to health. But be sure to pay attention to the appropriate amount. After fruits and vegetables are concentrated into dried fruits and vegetables, although vitamins, minerals and other ingredients are concentrated, the sugar in the dried fruits is also concentrated. If eaten in large quantities, it will also lead to excessive sugar intake.

Baidu Encyclopedia - Freeze-dried Food

People's Daily Online - Fruit and vegetable crisps have calories comparable to fat meat