Generally in the summer time, you can just use 40 degrees Celsius warm water to mix the noodles, but in the winter time, it is better to use 60 degrees Celsius warm water to ensure the effect of the flour.

The water should be added enough when making the noodles. You can tell if you've added the right amount of water during the process. If you add too much water, the dough is difficult to form, add less water, the dough feels hard, and the dough is difficult to smooth, the naked eye can be seen in the dough contains a few small particles. If the water is too much, you can add flour to correct it, and if the water is too little, you can add the right amount of water to correct it.