Bhagavad Gita says:
Bg 17.10 — Food prepared more than three hours before being eaten, food that is tasteless, decomposed and putrid, and food consisting of remnants and untouchable things is dear to those in the mode of darkness.
Any food cooked more than three hours before it is eaten (except prasādam, food offered to the Lord) is considered to be in the mode of darkness. Because they are decomposing, such foods give a bad odor, which often attracts people in this mode but repulses those in the mode of goodness.
My question: Is it fine to consume Sattvic food prepared more than 3 hours ago or is it not permissible?