If it is pressed peanut oil, if the time is short.

Maybe the oil filter used in the oil mill is not effective. There are residues of phospholipids in the oil, which will aggregate, swell and turn black after heating, and the taste is not good.

If it's barrel oil, it may be broken if it smells bad. In addition, the press oil will have an odor when it expires.

I hope my answer can help you!