The invention relates to a method for manufacturing a soluble coffee tablet comprising the following successive steps: a. Taking a quantity of a coffee composition comprising coffee, wherein the coffee consists of soluble coffee particles; b. Compaction of the coffee composition to form a compacted coffee product of three-dimensional form; c. Moistening of said compacted coffee product to moisten the exterior surface of the compacted product; d. Drying of the moistened compacted product to form the soluble coffee tablet. Such a method makes it possible to form a soluble coffee tablet having an internal part and an external part entirely surrounding the internal part, with the external part having a greater density than the density of the internal part. The internal part is a porous core promoting the dissolution of the tablet and the external part forms a thick hardened crust with a density greater than the density of the core, thus increasing the mechanical resistance of the tablet.