To begin with, milk is a staple item that most shoppers intend to buy, and placing it at the back ensures that customers have to walk through a variety of other items to reach it. This encourages impulse buying as shoppers are exposed to a plethora of goods they might not have otherwise considered purchasing. The longer the route, the more opportunities the store has to entice shoppers with products.

Secondly, by placing milk—a highly perishable product—in the back, stores can better manage the cold chain logistics. It minimizes the time the product is out of a refrigerated environment during restocking. Close proximity to storage areas and ease of access for employees to replenish these high-demand products without causing disruptions in the main shopping areas plays a crucial role.

Moreover, grocery stores are configured to encourage a specific traffic flow. Retailers often layout their stores to create a particular path they want their customers to follow. By strategically placing popular, essential items like milk at the back, stores influence traffic patterns within the premises, exposing customers to as much of their product range as possible.