Propylene glycol USP/EP (pharmaceutical grade) is the only grade appropriate for application in food due to its handling practices.
Propylene glycol USP/EP is the ideal carrier of a large variety of flavours that give most of today's food and beverage their distinctive taste. The substance itself is colour-, taste- and odourless, and it does not react on its own, which means that it can perform its function without impacting on other product attributes.
This product has been confirmed safe, and provides unique inherent properties with regard to holding/attracting both water- and oil-based substances. In food, it is used to retain food colour pigments and provide for homogeneous distribution within the mixture. Propylene glycol USP/EP is approved for use as a food additive under E-number E 1520 (with strict maximum limit of 1 g/kg in human foodstuffs). Direct food contact uses include:
Indirect food contact uses include: