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Product characteristics of fruit and vegetable crisps

Jun 16,2025

The vacuum technology used in fruit and vegetable crisps has a simple application principle in food drying, that is, under negative pressure conditions, the boiling point of water is reduced, which improves the speed of water evaporation. And due to the decrease in temperature, the drying process does not change much in the characteristics of food.The application of vacuum technology in food drying began in the 1940s.After a period of development, from the late 1950s to the early 1970s, freeze-drying technology was mainly used to produce astronaut food.In 1976, Japanese scholars Yamazaki, Tatsuo, etc. disclosed a method for preparing fried dehydrated apples in a vacuum and low temperature state.This is the beginning of the production technology of fruit and vegetable crisps.Simply put, its products are still a kind of dehydrated fruit and vegetable products.

The product is fried at low temperature in a vacuum state. The concept of low temperature is a low temperature relative to the normal frying temperature, not a real low temperature.Some people call it a vacuum low-temperature oil bath. It is a game of words and cannot change the nature of fried food.As a fried food, there are special requirements for its packaging.It should be kept away from light, moisture, and placed in a cool place.Some manufacturers sell their products in transparent pet bottles, which in itself violates product characteristics.It will lead to a short shelf life of the product, easy to fade and fail.The packaging made according to its product characteristics should be made of opaque and airtight materials.In order to prevent it from breaking, inflatable packaging should be used.Moreover, the gas filled should be nitrogen and carbon dioxide that do not have oxidation.Only such packaging can extend the shelf life and reduce sales costs.In addition, from the packaging point of view, the weight of some products is somewhat too large, and the proportion of this part of the products will decrease in the future.

How to produce high-quality fruit and vegetable chips

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