Polar Content


Polar Content

The best Internationally recognised method of measuring oil quality is through assessment of the level of Polar Content (Polar Material, Polar Compounds), vegetable oil is naturally non-polar in nature, but as the oil degrades through oxidation, polymerisation and hydrolysis the polar content increases, and when measured gives an indication of oil quality.


It has been recognised in many countries that there are contaminants within the oil that can lead to serious Health Issues, as an example through oxidation it has been demonstrated that harmful nutritional compounds form in the oil, which have resulted in conditions such as necrosis of the liver, retarded growth, hair loss and dermatitis in rats - this has led the way in limits being imposed on the maximum Polar Content within the oil ranging from 25-27%, measured using Laboratory testing, or on site with the use of a hand held meter.

Filtration Benefits:

Limitations exist in many countries on the maximum permissible Polar Content levels from 25% -27%, where it is a legal requirement that your oil remains below this level. In locations where Fryer Management practices have led to the limits being passed, filtration and the PuriFry service benefits our customers by limiting the increase of Polar Material through removal of the degrading contaminants.