and contains only FDA approved ingredients. Zitrec FC is found acceptable by NSF International for use as a heat transfer fluid where there is the possibility of incidental food contact.
Many applications in the industry require a fluid to transport heat or cold. This transport medium is usually called secondary
refrigerant or secondary coolant. The ideal secondary refrigerant must ensure a good thermal conductivity, have a high specific
heat, be non-flammable and compatible with common engineering materials. Preferably the heat transfer fluid is also of low toxicity, which is specifically in the food industry of vital importance.
Defrosting, cooling and freezing are frequently part of an entire food chain process. In these applications, Zitrec FC and
its dilutions are especially useful. Some typical examples include the cooling in the beverage industries such as the cooling of
wine, beer, milk and juices. But also during the brewing process, the cooling of fermentation and wort tanks is essential and
Zitrec FC will provide here the necessary heat transfer. Further in the chain, Zitrec FC can be used during the bottling process of carbonated beverages, such as champagne or beer, preventing as such loss of carbonation.
Other applications include indirect contact freezing. During this process, the product and a heat transfer fluid are separated by
means of an interface or barrier between the cooling medium and the product. This interface can be a metal plate or the
products packaging material, which prevents direct contact between the product and the cooling medium. Contact freezing is mainly used to cool packed fish and meat products in blocks with preset linear dimensions.
Zitrec FC provides protection against boiling, freezing and corrosion in each application. The dilution is determined by system
requirements, mainly freezing requirements. However, to ensure good corrosion protection it is recommended to use at least 30 vol. % of Zitrec FC in the coolant solution. Mixtures with more than 70 vol. % of Zitrec FC in water are not recommended, because the physical properties like heat transfer are no longer sufficient.
Zitrec FC and its dilutions must be used in a manner which prevents direct or indirect contamination of edible products as they are not suitable for use as a direct food component or additive.