Making a paella? The perfect paella rice for your next paella recipe is Calasparra rice. Your way to cooking authentic Spanish Food. Calasparra Rice is a unique short grain rice grown in the mountains of the Spanish province of Murcia, where it enjoys pure mountain water irrigation by aqueducts engineered by the Romans & the Moors deliver water from the mountain streams, unlike the usual rice fields by the Mediterranean Sea. This rice matures for 30% longer developing it's remarkable flavour and texture. This rice absorbs 3 times its weight in stock, delivering the depth of flavour that you have come to recognize in the best of paellas.