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When it comes to bottling beer, what is double pre-evacuation?


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Kevin Henderson from HDP Brewing Systems

When increased shelf life is desired pre-evacuation helps to eliminate Oxygen in the container. The more pre-evacuation cycles you have, the less Oxygen will be picked up during your fill cycle and in turn, extending your self life.

Oct 3, 2013

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Matt DiDonato from Prospero Equipment Corp.

Double pre-evacuation is a process used to fill carbonated products to reducer oxygen intake inside the bottle.  The process consist of (de-aeration), filling, closing, levelling and de-gassing. 

Oct 3, 2013

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Mike Palmer from Palmer Canning

Pre-Evacuation of the oxygen in the can or bottle is an additional process that can be added where by CO2 is purged into the can or bottle and the oxygen is dispersed to the atmosphere. Also, empty cans or bottles can be dosed with nitrogen to purge out oxygen before entering the filler.
 

Oct 3, 2013

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Sarah Martin from Martin Robotics

Pre-evacuation is the process of creating a good air environment for the beer to filled into bottles with.  Air (containing oxygen) that is in bottles is evacuated from the bottle using vacuum, then purging the bottle with CO2 or Nitrogen.  This is a process that can be repeated multiple times created an environment with less and less Oxygen present with each evac cycle performed.  This in turn will create less Oxygen and dissolved Oxygen in the final product giving a longer shelf life.

Feb 1, 2017

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