30 minutes or so. Microwave heating taro, need to pay attention to the time should not be too long, because taro contains a lot of starch, if a long time high temperature heating, may lead to starch particles deformation, not conducive to digestion. In general, microwave heating taro needs to be steamed for about 30 minutes, which can make taro soft and conducive to digestion. And if the taro is hard, it can be processed by microwave heating, it should be noted that if the taro is more sticky, the steaming time can also be appropriately extended.