蔬菜脆片属于一种脱水食品，全称为蔬菜真空低温脱水脆片，简称为VF。该产品充分保留了蔬菜的营养成分及色泽风味，具有，低脂肪，低热量的特点，口感脆酥，清新自然，是目前国际上流行的一种时尚休闲食品。
Dried fish chips belong to a kind of dehydrated food, which is called dried fish vacuum low temperature dehydrated chips, or VF for short. The product fully retains the nutritional components, color and flavor of dried fish. It has the characteristics of pure nature, low fat and low calorie. It tastes crisp, fresh and natural. It is a fashionable leisure food in the world.
由于该产品的加工是在真空罐中，脱水是在相对较低的温度下进行，所以保持了食品的营养成分和天然的色泽风味不受高温破坏，因此在意义上与常温油炸食品大不相同，它的基本原理是利用在减压条件下，油和水的三个不同物理现象：
（一）油和水的沸点降低（油在80℃左右，水在40℃左右）；
（二）达到沸点后，水由液态转为气态；而油则不同；
（三）油和水的比重不同，可以在高沸点下将物料中的水分置换出，能在短时间内使物料迅速脱水。 Because the product is processed in vacuum tank and dehydrated at a relatively low temperature, the nutritional components and natural color and flavor of the food are not damaged by high temperature. Therefore, it is quite different from normal temperature fried food in meaning. Its basic principle is to use three different physical phenomena of oil and water under the condition of decompression
（1） The boiling points of oil and water decrease (about 80 ℃ for oil and 40 ℃ for water);
（2） When the boiling point is reached, water changes from liquid state to gas state, but oil is different;
（3） Due to the different specific gravity of oil and water, the water in the material can be replaced at high boiling point, and the material can be dehydrated rapidly in a short time.
