If you’re worried about eating spoiled tofu, don’t worry. Tofu looks and smells different when it’s spoiled. A sour odor is a sign that tofu is not fresh. It would help if you threw it out. You can even make a homemade tofu recipe with it. If you’re not sure, try a different brand.
To determine if tofu is terrible, look for a moldy appearance, an unusual color, or a discolored or bloated package. It should also smell fresh. If the tofu smells odd, throw it away. If the color changes to a darker color, it isn’t good.