The utility model relates a processed food material, a food using the same, and a preparation method using the food. The processed food material provides the edible food, which can not be contracted or dried by using the microwave oven, even when being heated by the microwave irradiation. The processed food material can be used to prepare the food, and comprises a colloid dispersing agent, natural polysaccharide thermal irreversible gel (such as konjak particles) dispersed in the colloid dispersing agent, and bubbles. The colloid dispersing agent contains the natural polysaccharide, the water and the emulsifier.
