Joyoung Soymilk Maker K350 cannot make enough for one person. There is a temperature measuring tube inside the soymilk maker. On the machine head, the soymilk maker breaks down food, heats it and cooks it. This determines its water level. It has a minimum and a maximum.

The scale line is on the inner wall of the machine. The amount of water you add must meet this line. The smallest model I used from Midea can print out more than the amount for one person.

If you want to control the number of people with one person, you can buy a wall breaker. It has no limit and you can hit as many people as you like.