How Many Times Can You Reuse Cooking Oil? The 25% Rule

FSSAI flags cooking oil as unsafe once Total Polar Compounds cross 25% — it can't be reversed by filtering.

At home, reuse oil 2-3 times at most, only if it was used at moderate heat and strained clean.

Dark colour, sticky film, foam that won't settle and a fishy smell mean the oil is done.

Never top up old oil with fresh — you just contaminate the new batch.

Don't pour used oil down the drain; India's RUCO scheme turns it into biodiesel.