Do you want to reduce your Pan strike time?

Vacuum in the pan should be high enough to ensure good heat transfer by providing a sufficient temperature gradient between the heating steam and the massecuite. In case of low vacuum, with increase of massecuite temperature, the gradient decreases and the evaporation rate suffers. Below graph shows the magnitude of the reduction in evaporation rate due to low vacuum in a pan at constant heating steam pressure and constant thermal performance (constant heat transfer value of the pan).