Make a circle with hand-brewed coffee, from the inside to the outside or from the outside to the inside

Yesterday, when a customer came to the Front Street store to buy coffee beans, he asked a very tricky question: Should the flow of water in hand-brewed coffee in a circle be from the inside to the outside or from the outside to the inside? Do different routes have an impact on the taste of coffee brewing? Many people may think that there is no need to be so exaggerated when making coffee, it is just like pouring water.