50ml warm water
12.5ml nigari (you need to adjust the amount)
Instructions:
1. soak soy beans overnight.
2. blend soy beans and water
3. put the mixture into a pot and heat it up. then strain the mixture.
4. combine warm water and nigari.
5. add nigari water to the mixture(it should be 163F/73C).
6. wait until it hardens.