This $180 gadget feeds your sourdough starter for a week while you're away; what is it and how does it work?

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The appliance has separate storage for flour and water, along with a glass container for the sourdough starter. Users load flour and water into their respective compartments and keep their starter in the glass crock. The measured quantities of flour and water are automatically dispensed by the machine. The ingredients are mixed into the starter according to the selected feeding schedule.