Condenser temperature, the colder the better?

Condenser temperature, the colder the better?

 

Not always.

 

Condenser temperature 10C to 15C colder than sample freezing point is ok. A colder condenser will not speed up the lyophilization, but it will consume more energy, add freeze dry system cost and make your freeze dry system complex.

 

In another aspect, proper sized condenser can handle the amount of vapor that come from raw product, and maintain the temperature level, is enough and ideal.

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