What is the typical duration of the flush delay on an HTST with a positive pump?

The typical duration of the flush delay on a High-Temperature Short-Time (HTST) pasteurizer with a positive pump is usually around 1-2 seconds. This brief flush delay allows the system to clear any residual product from the previous batch before introducing the new product. This is important for maintaining product integrity and ensuring that the incoming product is not contaminated by remnants of what was processed previously.

A longer flush period would not be as effective in ensuring the system is adequately cleared, which can lead to quality control issues. Thus, the standard practice in managing the flush delay is to keep it concise while still facilitating effective cleaning, which is why 1-2 seconds is considered optimal in this context.