What is one guideline for mayo application on bread?

When preparing sandwiches, especially in a business like Jimmy John's, a critical guideline for applying mayo is to ensure that it does not exceed two portions. This is essential for maintaining consistency in flavor and texture across all sandwiches, which is vital for customer satisfaction. By keeping the application moderate, it allows the mayo to enhance the sandwich without overwhelming other flavors or making the bread soggy.

Limiting the amount of mayo to two portions also helps in portion control, ensuring that the ingredients are used efficiently, which is important for both cost management and maintaining the quality of each sandwich. This guideline supports the idea of a balanced sandwich, where each ingredient complements the others without one overpowering the entirety of the taste experience.