No need. You don't need to cook the soymilk in a wall-breaker. During the process of making soymilk in a wall-breaker, the soymilk is heated to a high temperature, which will denature the proteins and other ingredients in the soymilk. Soymilk doesn't need to be boiled and then cooled as it is traditionally cooked.

The process of making soymilk in a wall-breaker can be too hot, resulting in a partial loss of the nutrients in the soymilk. When using a wall-breaker to make soymilk, choose fresh beans and serve the soymilk after it has cooled.