A beverage vessel includes: a beverage container in which a beverage may be stored said beverage container having an upper opening by which beverage may be poured in and poured out of the beverage container and a wall extending from the opening to the bottom of the beverage container; a closure element adapted to be positioned in the upper opening of the beverage container; a light distribution element arranged at the closure element; and a light emitter positioned such that the light emitted by the light emitter passes at least a part of the volume of the beverage container before entering the light distribution element; wherein said closure element comprises a locking mechanism, said locking mechanism comprising at least three locking arms extending in radial direction of the beverage vessel to the beverage container, wherein each arm of the locking element comprises an elastic portion being elastic in the radial direction of the beverage vessel; the beverage container comprises at least one concave portion in the wall, said concave portion extending in radial direction of the beverage vessel; and said arms releasably engage in the concave portion in the wall for releasably locking the closure element to the beverage container.