Food drying method
A food drying and drying technology, which is applied in food preservation, drying solid materials, drying gas arrangement, etc., can solve the problems of difficult food shrinkage and deformation, complex change dynamics, and difficult to achieve precise control, so as to improve the appearance of products performance, reduced shrinkage deformation, and easy handling
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Embodiment 1
[0055] Step 1), measure the first moisture content of the noodles to be dried to be 17%;
[0056] Step 2), the second water content of the measured noodles is 18%, and the second water activity at 30-40°C is 83%;
[0057] Step 3), the third water content of the noodles is 14%, and the third water activity of the noodles at 30-40° C. is measured to be 60%;
[0058] Step 4), the first water content of the noodles to be dried is less than the second water content, directly carry out secondary drying;
[0059] Measure the second time, the second distance=second delivery speed×second time×1.5, determine the distance from the start point to the end point of the second drying interval according to the second distance; the second water activity is 83%, then the second drying interval Dry air is passed into the starting point to the third relative humidity of 68%, the allowable fluctuation range is 63-73%, and the third water activity is 60%, then the dry air is passed into the end po...
Embodiment 2
[0064] Step 1), measure the first moisture content of the noodles to be dried to be 34%;
[0065] Step 2), the second water content of the measured noodles is 18%, and the second water activity at 30-40°C is 83%;
[0066] Step 3), the third water content of the noodles is 14%, and the third water activity of the noodles at 30-40° C. is measured to be 60%;
[0067] Step 4), the first moisture content of the noodles to be dried is greater than the second moisture content, and the food to be dried is sequentially subjected to primary drying and secondary drying;
[0068] Measure the first time and the second time, calculate the first distance and the second distance, the first distance=the first conveying speed×the first time, the second distance=the second conveying speed×the second time×1.5; according to the first distance Determine the distance from the start point to the end point of the first drying interval; determine the distance from the start point to the end point of t...
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