A drinking consumption inspection apparatus, including: a plurality of compartments; a plurality of cups, each being associated to a different and only to one person, and to a different and only one of the compartments, for inserting the cup thereinto; a weight for each of the compartments, for weighing the cup thereof, upon the insertion; and a controller, for accumulating decrease of sequential weights provided by said weights, for each cup separately, over time, thereby the drinking consumption inspection apparatus records drinking quantity of each of the cups, for inspecting that each person drinks sufficiently.