Wax oxidized polyethylene

International Numbering System (INS) for Food Additives: 914
Food additives Europe numbers: E914 

Oxidized polyethylene wax (OPW) or oxidized polyethylene can be a food excipient, but with limitations. Here's a breakdown of its uses and considerations:

Function in Food:

  • Limited Use as a Coating Agent: OPW can be used as a thin coating on some fruits and vegetables [1]. This coating serves several purposes:
    • Protects Against Moisture Loss: It can help reduce moisture loss from the produce, potentially extending shelf life.
    • Maintains Freshness: In some cases, it might create a slight barrier that helps maintain freshness by slowing down respiration rates.
    • Improves Appearance: A very thin OPW coating may impart a slight gloss to some produce, although this isn't always the intended purpose.

Safety Considerations:

  • Generally Recognized as Safe (GRAS): When used according to good manufacturing practices (GMP) and within approved limitations, OPW is generally recognized as safe (GRAS) by regulatory bodies like the US Food and Drug Administration (FDA) [1].
  • Maximum Permitted Levels: There are limitations on the amount of OPW that can be applied to different fruits and vegetables. These limits are set to ensure consumer safety.

Important Points:

  • Not all fruits and vegetables are coated with OPW. You might find information about coatings on the packaging or by searching for specific produce.
  • If you're concerned about OPW on produce, you can always wash fruits and vegetables thoroughly before consumption. This can help remove any surface residue, including potential wax coatings.