A beverage system comprising a vessel and a liner assembly. The vessel may include a spigot with a passage configured to receive at least a portion of a liner assembly. The liner assembly may include a flexible liner, a flexible tube, a rigid cuff, and a tamper evident connection therebetween. The flexible liner may be positionable in the vessel. The flexible tube positionable in the passage of the spigot. The rigid cuff disposed in at least a portion of the tube. The tamper evident connection may be provided between the tube, liner, and cuff.