A cleanable lid assembly is provided for a beverage container. The lid assembly has a lid housing having a drink aperture, and a seal assembly that is connected to the lid housing while movable between a first or operable position and a second or cleaning position. The seal assembly has a stopper that can open and close the drink aperture in the first position. The seal assembly is pivotally connected to the lid housing to transition to the cleaning position. A locking member extends transversely from the seal assembly to engage a stop on the lid housing and lock the seal assembly in the operable position. The locking member is moveable radially inward to disengage from the stop and to allow the seal assembly to transition from the first position to the cleaning position.