The independent fermentation operation process of this brand of bread machine is as follows:

1. Prepare the dough bucket of the bread machine and ensure that the bucket is clean and has no adhesive or residue.

2. According to the selected bread recipe, add the ingredients required for the bread into the dough bucket in the specified proportion.

3. Turn off the dough function of the bread machine and select the "dough fermentation" program (usually a separate function option).

4. After starting the fermentation process, the bread machine will provide a period of time (usually 1-2 hours) for the dough to ferment. During this period, the dough will ferment and expand under ideal temperature and humidity conditions.