Soybeans are soaked with cold water in advance overnight.
The beans are then put into the juice machine.
The milk from the soybean is separated from the bean.
Sieve the soy milk into the bowl.
Heat the milk in a pot over low heat, removing the foam from the top.
Continue to cook the heated soy milk over low heat for 5-10 minutes, stirring constantly to prevent it from burning to the bottom.
After cooling slightly, use cheesecloth to strain again into a bowl. Do not put too much through at one time, or it will not filter properly.
Then squeeze the cloth by hand and filter the remaining soy milk.
Mix the lactone with warm water.
Pour the milk into the bowl and stir while adding.
Remove the floating foam.
Let it stand for about 20 minutes.
Add your favorite ingredients, whether you want sweet or salty!