L. Normand et al., A research note evaluation of the VERI-FRY (R) PRO FFA-75 quick test for measuring free fatty acids in deep-frying oils, J FOOD LIPI, 7(1), 2000, pp. 63-69
The AOCS official method for the determination of free fatty acids (FFAs) i
s used for monitoring the extent of deterioration in deep-frying oils. Whil
e it is accurate and reliable it is far too subjective and time-consuming a
s it depends on the identification of a clear end point. The VERI-FRI(R) PR
O FFA-75 quick test proved to be a fast and reliable alternative procedure
for measuring FFAs and, in addition, was far more environmentally friendly.