01 / Practical selection
Specify the citrus stream
Identify the fruit, recipe and whether the product is reconstituted or not from concentrate. Include pulp and particles, inlet temperature and the expected operating flow range. These details determine the product-handling questions for the unit.
If several citrus recipes share the machine, list their differences. The highest flow and the most difficult product distribution may occur on different recipes.
02 / Practical selection
Balance reduced pressure and aroma handling
Operating pressure and temperature affect both gas release and the vapour load. For an aroma-sensitive citrus product, discuss condensation and aroma-handling requirements before finalizing the vacuum arrangement.
Ask how the quality objective will be assessed on the actual product. Condenser and condensate-return arrangements must be evaluated for the duty; they should not be assumed from a photograph.
03 / Practical selection
Protect the result through the line
Review the transfer from the deaerator to heating, buffering and filling. An oxygen objective measured at the vessel outlet alone may not describe what reaches the filler.
Record the inlet and downstream sampling method, production temperature and any additional air exposure between points. That provides a more useful comparison than a vacuum reading taken in isolation.
Common questions
Citrus juice questions
Does deaeration affect aroma?
Product volatiles may enter the vapour path. Temperature, pressure and condensation scope should be considered for an aroma-sensitive product.
Is an oxygen target fixed for all orange juice?
A target needs to be defined for the recipe and process boundary, with an agreed measurement method.