Grape Drying
Grapes are dried to produce raisin or kishmish (as commonly known in India).
There are four primary methods for producing raisins which are :
Traditional natural drying, Dehydration, Continuous tray, and dried-on-the-vine methods. The most popular and commonly used one is the natural drying method.
Frequently Faced Problems
Natural drying process depends upon the humidity & temperature level of the environment. As a result of humid conditions, drying cannot be achieved within the desired time-period. High humidity also affects the quality of the output.
General Recommendation
Drying rate can be increased if RH is maintained at 25% and temperature at about 35ºC.
Our Solution
TDS provides desiccant based dehmidifiers (manufactured by Bry-Air) on rent along with technical manpower to achieve the ideal conditions. This increases the drying rate and saves both time & money.
Advantages
- Drying time can be reduced sustantially.
- Reduction of drying time leads to profitability and enhances product quality.
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Kattha Drying
Kattha is an extract derived from the hardwood of khair (Acacia catechu) by boiling. It is a clay-colored crystalline substance used in the preparation of "pan," a chewing material popular in Asia and East Africa.
Katha is dried by cold room drying process. The moisture levels are reduced from typically above 50% to about 12-15%. The temperature in the cold room is maintained at slightly above 0ºC, throughout the process time. However, the process takes a long period of about 24 days.
Frequently Faced Problems
Natural process drying depends upon the humidity & temperature level of the environment.As a result of which during humid conditions, drying cannot be achieved within the desired time-period. High humidity also affects the quality of the output.
General Recommendation
RH to be maintained at 12-15%.
Our Solution
Low pressure drying techniques, can reduce the drying period substantially. TDS provides desiccant based dehmidifiers on rent along with technical manpower to achieve the desired RH level of 12%-15%.
Benefits
- Kattha being a high priced product shortening of process time results in substantial savings.
- Fewer inventory hold-ups.
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