Yam can be eaten after sprouting, but it is generally not recommended. Yam sprouting does not produce toxic ingredients, if there is no mold, generally can be eaten. However, the nutrients in the sprouted yam may change, the taste is worse compared to the un-sprouted yam, the nutritional value is reduced, if there is no special needs, it is generally not recommended to eat. If you want to eat sprouted yam, it is best to remove the sprouted parts completely, and then peeled, and then soaked in water for a period of time, cooking can be high temperature will be fully cooked yam and then eat, to a certain extent, to reduce the impact of germination on the taste of yam. Yam preservation of the first trick, room temperature preservation now has entered the winter, the temperature is generally lower, so do not eat all the yam we can save at room temperature, but there is a prerequisite, that is, to ensure that the light. Because an important factor in the growth of yam buds is light. The specific method is to put the yam into a breathable non-woven bag and put it in a cool and ventilated place. Be careful not to use non-breathable plastic bags or other tools with good sealing, because the yam will carry out respiration and produce moisture, making the yam in a humid environment and easy to rot. Of course, we can also use newspaper or absorbent paper to wrap the yam, and then into a dark-colored bag, sealed and preserved, is also possible. The second trick, refrigerated method of preservation of low temperature can extend the preservation time of yam, according to statistics, in the environment of 4-10 degrees, yam can be put a year long. So if it is a relatively small amount of yam, put it into the refrigerator to freeze and save it is still very good. Specific method is to wrap the yam with absorbent paper, and then put it into a plastic bag, squeeze out the air inside, and tie the bag tightly. Put into the refrigerator to keep cold.