Take a commercial soft ice cream machine with two mix tanks for three flavors (2+1 mix) for example:

1. Prepare two different flavors of soft serve ice cream mix (you can use ice cream powder or ice cream liquid mix).
2. Add each flavor of ice cream mix into each mix tank.
3. Wait for the ice cream mix to flow from the mix tanks into the freezing cylinders. Wait until there are no more air bubbles in the storage tanks.
4. Pull down the handles on the left and right sides to check if there is a steady flow of ice cream mix.
5. Start the ice cream automatic production mode. Typically, after adding the ice cream ingredients for the first time, wait for about 15 minutes, you can start to dispense the soft serve ice cream.
6. When the mix tanks low level of ice cream mix, simply add more soft serve ice cream ingredients promptly, and the machine will continue smoothly with the automatic soft serve ice cream production.