What is a potential risk of the shake machine if not properly maintained?

The correct choice highlights a significant concern that arises when a shake machine is not properly maintained, leading to high food costs and poor product quality. When maintenance is neglected, the machine may not operate efficiently, causing ingredients to be wasted or improperly mixed. This inefficiency can result in a higher volume of ingredients being used to achieve a desirable consistency or flavor in shakes, directly impacting food costs.

In addition, poor maintenance can lead to the breakdown of essential components, diminished performance, and inconsistent product output. When product quality declines, customers may not return for repeat business, prompting a need for additional resources to rebuild customer trust and compensating for lost sales. Therefore, maintaining the shake machine is crucial not just for ensuring operational efficiency but also for maintaining profitability and product standards.