Processes using high temperatures and reduced soaking times can be applied in the preparation of various soy products, such as soymilk, tofu, and tempeh. Soaking temperatures within the range of 40e60 C can decrease the lipoxygenase activity and improve the digestibility of soybean proteins (Shin, Kim, & Kim, 2013). However, high soaking temperatures increase the mass transfer rate by diffusion, resulting in a significant loss of solids, such as proteins