Commercial Floriculture

Vacuum drying

Principle:
• The embedded material may be dehydrated under vacuum.
  
• It employs a thick walled chamber fitted with a heating device, a vacuum pump for maintaining high vacuum and a condenser for condensing the liberated moisture in drying compartment.

Advantages:
• It permits the use of low temperature for drying, thus minimizing oxidative changes resulting in excellent quality of the finished product.
  
• Energy loss is also minimum as most of the heat is utilized for evaporating moisture.

Disadvantages:
• High cost of equipment and its sophisticated nature.