How to Tell if Garlic is Bad?
When buying minced garlic, remember to check the appearance, feel, and smell. If the skin has dark spots or mold, toss it. The bulb will last a few months in the refrigerator if the skin is dry. If the cloves are intact, you can use them. However, if the skin has mold, you should throw the entire bulb. If the cloves are moldy, discard them.
When minced garlic is old, it loses its flavor and becomes soft, turning to mush. If it has become soft, you should throw it away.
