A single- or multiphase detergent tablet that has at least one active phase containing one or more washing or cleaning substance(s), a solid matrix enclosing the substance(s) in the form of a solidified melt, wherein the matrix material is selected from sugars, sugar acids, sugar alcohols, and any mixtures thereof, and wherein the solid matrix has a solubility above 100 g/l at 20° C. and the proportion by weight of the solid matrix in the total weight of the active phase is at least 10% by weight.