Excessively brushing the inside edge of the pot with water during sugar cooking will:

Brushing the inside edge of the pot with water during sugar cooking can slow down the cooking procedure. This technique is typically employed to prevent sugar crystals from forming on the sides of the pot. When sugar cooks, it can sometimes crystallize, creating a grainy texture and affecting the final product. By using water to wash down the sides, you can help dissolve any sugar that has begun to crystallize and maintain a smooth, consistent syrup.

However, introducing water into the system does temporarily add moisture and can hinder the cooking process as the sugar takes time to re-evaporate that water. This results in a longer cooking time for the sugar to reach the desired temperature and consistency. Understanding this relationship is crucial when aiming for a successful sugar preparation, as maintaining the right conditions in the pot can significantly influence the outcome.