plastic jugs**. In many regions, Costco sells milk in square-shaped containers. While these are efficient for shipping and storage, they are notoriously **difficult to pour without spilling**. Many customers find them frustrating to use, which has led to a widespread “warning” among shoppers to avoid them unless you have a specific technique for pouring .
2. Freshness and Bulk Buying
Since
Walmart and Costco sell milk in high volumes, often in two-packs or large gallons, the risk of **spoilage** is a common topic. Some customers have reported that store-brand milk (like
