For comparison of the influence of pressing and refining conditions
on the chloropropanols content in edible oils two types of
samples were examined: cold-pressed unrefined oils such as corn,
sesame, linseed, rapeseed, sunflower and extra virgin olive oil and
refined oils - rapeseed, sunflower and olive oil (three samples from
different supplier of each oil variety). The selection of margarines
and fish oils for the investigation was based on the popularity of
different brands and suppliers among Polish consumers.