English Coach

Spoil （他動詞）〜を台無しにする、ダメにする、を甘やかす（自動詞）台無しになる（noun)傷物、破損品

diminish or destroy the value or quality of, harm the character of (a child) by being too lenient or indulgent, waste material brought up during the course of an excavation or a dredging or mining operation

You should not spoil the vegitable. You should eat it by expiration date.