Packages for housing consumable products and methods of using same are provided. The packages may be customized, functional packages that are designed to prevent accidental spillage or leakage of a flowable consumable product housed therein when the package is opened or during consumption of the product from the package. In a general embodiment, flexible packages are provided and include a body defining a cavity for housing a flowable product, a channel for dispensing the flowable product from the cavity, and a releasable seal that blocks the channel under the application of light pressure, such as occurs during opening the package, but unblocks the channel under heavier pressure, such as occurs during consumption of the product.
