An indication of 2% free fatty acid in cooking oil shows that the break-down process has begun.
An indication of 4% free fatty acid means that the quality of breaded foods such as chicken and fish should be checked. The oil should be discarded if unacceptable.
An indication of 6% free fatty acid means that the quality of all other fried (battered) foods including chicken, fish and chips/fries should be checked. The oil should be discarded if unacceptable.
If an extremely bright yellow colour is observed, then this indictaes that the free fatty acid level is much higher than 6% and the oil should be discarded immediately.
If a clearly indication of free fatty acid build up below 2% is needed then the lower level J-QUANT® Oil 2.5 test strip is available.