Acid solution is used to dry grapes by acid method. sun valley raisins The acid solution is obtained from the combination of edible potassium carbonate, water and vegetable oil. In this method, the grapes are placed in a basket after being picked as bunches.
and the basket is placed in the acid solution. They are placed on the ground and placed in the sun to dry.
In order for the grapes to dry completely evenly and uniformly, we turn the bunches several times during the drying process. The time required for drying is 5 to 8 days. The acid solution used for drying products is different from industrial acid.
This solution is basically a disinfectant and also a catalyst for the evaporation process. Potassium carbonate causes grooves to appear on the surface of the grapes and the drying process is carried out faster. The vegetable oil in this solution also softens the raisins.
Therefore, with this method, raisins can be prepared in a shorter period of time, which leads to the fact that the color of raisins does not darken because they are exposed to sunlight for a short period of time. In addition to having a good taste, it also has a soft texture.
All kinds of raisins
Dry shadow raisins:
In this method, the grapes are dried indoors or in the shade. In this way, the grape bunches are either hung from the ceiling with a string, or hung on wire racks, or spread on a net. There must be enough air flow inside the halls.
The time required for drying grapes in this method is between 10 and 20 days. Raisins prepared by this method are green in color.
This method does not have risks such as precipitation and spoilage. Also, the resulting raisins are clean and free of waste materials. It should be mentioned that this method is the most expensive method of drying grapes.
it requires a lot of labor and also requires the construction of a roofed warehouse equipped with relevant equipment.
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