1. Maturity of the fruit
After the harvest, the chemical structure of the fruit modifies with the extension of the time for ripening. For instance, during the maturing of the banana, the starch is decreased from 26% to 1%, and the sugar level is raised from 1% to 19.5%. With the increase of the sugar content, the fruit is softer and uneasy to develop. For instance, the ideal maturity for banana processing is about eight. This fruit hardens and accumulates different flavors. which is useful for production and guarantees a product's pleasant flavor and structure.
2.Types of materials
Various types of raw materials have various processing traits. For instance, the red apple is easy to be chopped. When fried, the apple is easily breakable. If the slice is too chunky and the frying takes very long, the surface layer of the apple is fried. Nevertheless, the inner layer is still moist. For that reason, it is very important to select suitable types.
3. The fruit thickness
The ideal thickness is 2-3mm. With thickness higher than 5mm, it is hard to guarantee that the moisture content stretches to 3% or lower without scalding of the surface, particularly in the center of the chip where the moisture level is higher. The product will soften more and can easily mold. With the thickness lower than 1 mm, the fruit parts are distorted and feeble. If the fruit is too big, it might deform and curl.
Advantages of Vacuum Fryer for making Fruit Chips
1. Preservation of the nutrients, natural color, and tastes of fresh fruit
2. Low fat, low-calorie content and high cellulose content. The oil content is low than conventional fried food.
3. No carcinogens like 3-4 benzo and no acrylamide
4. Extended shelf life
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