Can corn oil color changed be eat?

Measure the oil is safe or not, color is not a reliable indicator.

Edible oil color reversion occurs, the best thing to detect indicators are peroxide value of oil, to see whether excessive, if only due to the normal oxidation.

Only by eyes can not determine whether the deterioration of oil.

If necessary, you can find a professional testing organization for testing and then make decisions.

For ordinary consumers, they can smell to assist judgment.

If there is a rancid smell, even slightly, it should not continue to use, peroxide will cause harm to body.