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Pressurization of PET Bottles and thin wall cans

 
PET bottle without liquid nitrogen Controlled, high purity liquid nitrogen dosing provides
  • Package strength to eliminate paneling and palletizing problems
  • Vending machine compatibility
  • Manufacturer cost saving with the use of lighter weight plastic
  • Firm packaging for customer appeal
The NITRODOSE system has been developed to meet these requirements and cut cost at the same time by providing a precise charge of liquid nitrogen.

How does a NITRODOSE system work?

A precisely timed drop of liquid nitrogen is being dosed into the head space above the beverage of a bottle/can after filling and before sealing/capping.
The cold liquid nitrogen (-196°C) turns into nitrogen gas at room temperature and expands rapidly (1 g of liquid nitrogens yields 850 ml of nitrogen gas). With the bottle being capped at a certain time after dosing, this process will create a defined internal pressure in the bottle/can.


PET bottle with liquid nitrogen
Applications
Filling of beverages like mineral water, ice tea, juices, sport drinks, beer, vegetable oil
Advantages
  • Consistent pressure from container to ensure no deformation of container
  • Weight reduction of bottle/can
  • Reduction of oxygen content
  • Very low consumption of liquid nitrogen
  • Nitrogen is completly inert and is accepted in the food and beverage industry. It is totally tasteless and odourless.
 
Read details about inerting
 
             
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