San Juan Mill

The San Juan mill belongs to the group of “river mills”, within the urban bank of the Guadaíra river. Technologically, it is an impeller mill, in which the water dammed by means of a weir converges in the “cubos”, narrow passages inside which the rodeznos, hydraulic wheels that moved the stones in charge of grinding the grain, were located.

Its name comes from the fact that the mill was owned by the Order of San Juan.

The current building is the result of transformations of the original medieval mill between the 17th and 20th centuries, so little remains of the original. It is worth mentioning the large square tower, used as a storehouse in case of flooding of the river. In the direction of the current there is a building, access to the mill and an area for loading and unloading the grain and flour already milled.
Above the current is the nave of the stones, covered with a half-barrel vault and under which are located the cubes, in number of four. The large weir that connects to the left bank of the Guadaíra was extensively reconstructed in 1998.

Above the flood level, on the right bank, is the “miller’s house”, a simple rectangular building used as a dwelling and warehouse until the end of the milling cycle in Alcalá, in the middle of the 20th century.