Sunday, August 29, 2021


Propellants is a food additive that helps propel food from a container. Propellants is a ‘miscellaneous additive’ that is used or intended to be used primarily; but does not include use as a processing aid or any enzyme.

For example, nitrous oxide. Nitrous oxide is a permitted packaging gas, but is not used for general food-packaging applications. It is used as a propellant in aerosol creams.

A propellant gas is necessary to force the release liquid through the nozzle of the dispenser.

Butane and iso-butane can be used as propellants in vegetable oil pan sprays and water-based emulsion sprays. Propane can be used as a propellant in vegetable oil pan sprays and water-based emulsion sprays.

To produce a spray, the propellant must have sufficient dispersive energy to overcome the surface tension of the liquid mixture, plus the cohesive and adhesive forces.

The liquefied gases used as propellants are very effective in dispersing the active ingredients in to a fine mist or foam; depending on the form it is required. These are relatively inert and non-toxic and have the advantage that the pressure within the can remains constant.

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