Question: To decide whether to discard dark cooking oil,
Options:
smell the oil for a rancid smell, check to see if it is too thick, and throw away oil that is too dark or foamy.
smell the oil for a flowery smell, check to see if it is too thick, and throw away oil that is too dark or foamy.
Answer: smell the oil for a rancid smell, check to see if it is too thick, and throw away oil that is too dark or foamy.