DEDICATED DRYING MACHINES MANUFACTURER
Preheating the product using a variety of methods prior to placing into the vacuum chamber.
Preheating the product in a specially designed vacuum chamber that is configured to provide
convection heating.
Heating the walls of the vacuum chamber.
Heating the shelves inside the vacuum chamber. This technique can apply heat directly to the
product by contact to the shelf.
Flowing hot gas, such as nitrogen, into the chamber. This can be done using a variety of
techniques.
Using infrared heating sources - vacuum infrared drying . This non-contact method can be an
effective and costly method of transferring heat to a product under vacuum .
Using microwave heating sources. This technology is advantageous for bulk products with poor
thermal conductivity. The microwave vacuum technology is used for high-end drying applications
of thermal sensitive products like fruits and vegetables in order to achieve higher product
qualities and shorter drying times. Microwave drying is more convenience in compared to
conventional drying methods and it offers many kinds of advantages. This technology is suitable
for a wide spectrum of food e.g. strawberries, cranberries, banana, carrot, honey, mushrooms
etc. but only the demerits is that the technology do have high ownership cost and return of
Investment duration is quite slow .
Vacuum drying of food products is an unique solution as the boiling point of water act as a negative
coefficient of atmospheric temperature i.e at lower atmospheric pressure boiling point of water
reduced,and residual moisture 1 to 3% can be achieved safely without product degradation and this is
the only reason why vacuum drying can able to retain high nutritional value, color, aroma, texture,
structure etc.
Dedicated Drying Solutions
Corporate Office
KDM Analytical
B-2/41 First Floor, Rohini
Sector-16, Delhi-110089
India
Tel
+91-9643480893
+91-9540666954
E -mail [email protected]
Application Lab
D-198, Mundka Industrial Area
Delhi-110081
web www.kdmanalytical.com