• Mineral oils are widespread food contaminants, and edible oils, like many other foodstuffs, are often contaminated.
• The lack of robust analytical methods and proper toxicological evaluation make it difficult to set a tolerance level.
• The best way to avoid mineral oil contamination is to prevent it by complying with good manufacturing practices, and the best solution to reducing mineral oil contamination in edible oils is through refining, especially during deodorization.
• This paper gives an overview of contamination sources, levels in some edible oils, regulatory aspects, analytical methods, and strategies for mitigation during refining.
