What is the main reason for discarding incorrectly prepared batter?

Discarding incorrectly prepared batter is crucial primarily because it ensures that quality and safety standards are met. When food products, like batter, are not prepared according to established guidelines, they may contain imbalances in ingredients or improper preparation that could lead to food safety issues. This can result in potential health risks for customers, such as foodborne illnesses. By adhering strictly to the SOPs and discarding any batches that don't meet the standards, IHOP maintains its commitment to providing safe, high-quality food to its patrons. This process helps protect the brand's reputation and ensures customer satisfaction, which is vital for any successful restaurant operation.

The other options, while they may highlight relevant considerations, do not address the primary public health implications tied to improperly prepared food.