Freeze-Drying Process: Basic Operation

This video presents the basic components and operation of a freeze-drying process. It explains the functions of each major component and how to operate and shut down. Freeze-drying is a two stage process: initially sublimation and then vacuum drying. These stages are also explained from the material side.

[@salehmuhammedraqib]

Very effective those who struggle with the theoretical aspects of freeze drying. Thank you Dr. for your great efforts..

[@foodinnovationshafiur]

You are welcome! Pleased to know that you have found this video an interesting one.

[@qwert3948]

Is 40 degrees below zero a prerequisite?

[@foodinnovationshafiur]

Thank you. In the next video, I am going to explian the minimum temperature and pressure for sublimation using phase diagram.

[@foodinnovationshafiur]

I have uploaded the new video. Please watch. Thank you.

[@أمجدالعياصره-م7ش]

Excuse me, I invented the refrigeration dryer with all its details, but the degree of knowledge is not known. How much is needed for the sublimation process of the materials to be completed?

[@foodinnovationshafiur]

Thank you. The sublimation process will depend on the amount of unfreezable water. You need to find the unfreezable water from the literature source and then need to calculate the time based on the sublimation rate. Please watch my state diagram videos to know the unfreezable water. I am planning to make more videos on the freeze-drying. I could address these issues, if audiences are interested.

[@أمجدالعياصره-م7ش]

@@foodinnovationshafiur Can I contact you on Facebook?

[@أمجدالعياصره-م7ش]

Can I contact you outside of TH-cam?

[@foodinnovationshafiur]

Yes, you could contact me. I will try to explian within my capacity.