How does the brewing process differ between using a 1 gallon vs 5 gallon system?

When brewing beer, the main difference between using a 1-gallon system and a 5-gallon system is the scale of the equipment and ingredients used. A 1-gallon system requires smaller equipment and less ingredients, making it easier to manage and quicker to brew a smaller batch of beer. On the other hand, a 5-gallon system requires larger equipment and more ingredients, resulting in a longer brewing process and a larger quantity of beer produced.