Job’s tears are moldy and can’t be eaten, because the moldy barley will cause the nutrients to become moldy, which can easily cause food poisoning and should be prohibited from being eaten. Job’s tears belong to the cereal food, after the moldy job’s tears are easy to produce aflatoxin, aflatoxin for the human body has a certain harm, and after the moldy job’s tears will lead to the original nutrients are changed, not easy to be absorbed by the body, so in order to the health of the body considerations, need to prohibit the consumption of moldy job’s tears. Fresh barley has a rice aroma, showing a yellowish-white, grayish-white color, if the barley itself has a musty smell or is dull, shape deformation, it means that barley has deteriorated, should be prohibited from eating. Fresh barley is rich in vitamin B, high protein, dietary fiber, trace elements, minerals, moderate consumption can help the body absorb the nutrients, is conducive to replenish the body’s nutritional needs, so be sure to eat fresh barley.