When there is not enough steam coming off the ingredients of the wok, even if there may remain a lot of water within the wok ingredients, you may need to add a small amount of water to the cooking wok. Remember - how you cook with a wok quickly and efficiently depends upon periods of steam cooking like these,. Although they may be very short in actual time, they make a big difference in how you cook with a wok. Rarely, will the water have entirely cooked out of the ingredients, as in most cases we want our vegetables, jumbo prawns, and other ingredients to be moist and very lightly cooked when the wok recipe is completed.