In this study, different particle size of Agaricus bisporus powders were added in yogurt to prepare freeze-dried mushroom yogurt melts. The effects of different particle size (20-mesh, 60-mesh, 100-mesh, ultra-fine powders) of Agaricus bisporus powders on the eating quality of yogurt melts were investigated. The results showed that the color of the products became darker and the concentration of volatile flavor components increased, when the powders were added. Meanwhile, the hydration capacity and texture characteristics changed obviously. Con...