Abstract: Systems and methods for rinsing beverage residue from a mechanical interface between threads of a bottle and threads of a bottle cap is described. The bottle cap may include a sealable coating to create a seal against a rim of the bottle. The bottle cap may also include passages to allow pressurized water to be injected into an upper inner region of the bottle cap. The pressurized water is prevented from entering the bottle due to the seal between the rim of the bottle and the sealable coating of the bottle cap. Therefore, the pressurized water is caused to escape through the mechanical thread interface toward a lower inner region of the bottle cap where the water escapes from the cap at atmospheric pressure.