2. Garlic is stored in a cool and ventilated place for a long time, and the vitamin C in it can undergo oxidation reaction, thus showing that the color of garlic turns yellow, and the evaporation and dehydration of water can soften garlic. The garlic yellow in this case is light yellow.

3. If garlic turns yellow and becomes soft during storage, and the yellow color becomes darker, or the surface oozes liquid, or smells bad, or green and yellow hairs appear on the surface, it usually means that garlic has gone bad.