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Product Drying

August 26, 2011


Product drying is basically a dehumidification service utilized by Pharma, Confectionery, Fertilizer, Sugar & Spices Industry. Humidity plays a major role during the packaging & storage stage of the products in this industry. Basically these products are hygroscopic, they absorb moisture from the air and agglomeration of products happen in humid conditions. So special care needs to be taken to provide the desired humidity level.

This type of dehumidification service is also utilized in case of seed drying, spice drying, chilli dying, grapes drying, paper drying, wood drying, honey drying, katha drying & restoration of water soaked furnitures, equipments & documents. Restoration is done by extracting moisture from the water damaged property and drying it. Through this service damaged properties need not be replaced but can be restored.

General Recommendation :

For every industry specific relative humidity level needs to be maintained

  • For fertilizer bagging RH- 40%
  • Spices Industry :
Spice RH (%) Temperature °C
Cardamom 30 - 35% 28°C
Dry Garlic 65 - 70% 0°C
Dry Onion 50 - 55% 10 - 20°C
Cinnamon 40% 15°C
Chillies 18 - 20% 45 - 50°C
  • Biscuits/ Cookies :RH - 30 ± 5% at 28° C (82° F) 
  • Katha drying:RH -12-15%
  • Grape drying:RH - 25% at about 35ºC 

TDS Solution:

Technical Drying Services (TDS) provides product drying services with the help of desiccant based dehumidifiers.

The desiccant based dehumidifier removes moisture from the air by chemical attraction rather than condensation. Humid air is directed across a desiccant material that acts as a drying agent. The moisture is collected in the desiccant. The moist desiccant is dried using second hot air stream that heats the desiccant and releases the moisture. Then the desiccant is reused to provide more dry air. In a continuous process the air is dried by the desiccant, at the same time the moist desiccant is dried for reuse so that dry air is available at all times continuously.

The main USP of TDS services is that it provides highly qualified technical manpower along with all the required equipments. As the service is provided on rental basis it can be availed whenever required.

Product drying services provides the following benefits:

  • Smoothness & crispness of product is maintained.
  • Flavour of spices are retained. 
  • Caking & Lumping of products can be avoided.


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