Our website use cookies to improve and personalize your experience. Our website may also include cookies from third parties like Google Ads, Google Analytics, Google TagManager, Youtube. By using the website, you consent to the use of cookies. We have updated our Privacy Policy and Cookies Policy. Please click to check.

Blog Post

Is it normal that huge temperature difference between shelves and raw product?

Is it normal that huge temperature difference between shelves and raw product?

Yes, its normal.

The shelves temperature displayed is the inlet temperature of the heat transfer fluid (it may change as per the recipe programmed). The material trays temperature displayed are the raw products real-time temperatures.

The fluid provide energy to raw product, enable frozen water inside sublimate to vapor. When sublimation freeze drying starts, the temperature difference may 20C or higher, but as per the process goes and water removed step by step, the temperature difference will be smaller and smaller, when freeze drying finish, the temperature of them will be same!

Related Posts