The Federation of Oils, Seeds and Fats Associations (FOSFA) is changing several of its documents, effective from 1 November, to highlight the risk of potential contamination of vegetable oil with sodium chloride from a seawater wash.

“The presence of sodium chloride (NaCI) in residual seawater after the tank wash procedure can potentially result in formation of the processing contaminant 3-monochloropropane diol (3-MCPD) and related 3-MCPD esters,” FOSFA technical manager Gretel Bescoby said on 3 November.

“Although a final freshwater rinse is usually performed by shippers, it was felt that highlighting the requirement to perform a freshwater rinse with drying will create an awareness and be an additional safeguard to prevent potential formation of the processing contaminants.”

Bescoby said text changes specifying that the final rinse after washing must be performed with freshwater followed by drying would be included in the following FOSFA documents:

  • Qualifications and operational procedures (Carriage of Oils and Fats) introduction
  • Combined Master Certificate
  • Certificate of Compliance, Cleanliness and Suitability of Ship’s Tanks
  • Code of Practice for Superintendents

FOSFA is a trade federation which provides standard contract forms to facilitate trade in oils, oilseeds and fats, as well as arbitration services.