Pons Calasparra Paella white Rice Arroz de Calasparra Size: 2.2 lb (1 kg) Ingredients: 100% white Calasparra rice. Product of Spain Casa Pons Rice carries the "Denominación de Origen" certification, which endorses its quality and distinctive characteristics. Unique for the way it is cultivated, this rice is grown in the mountains using a natural pure cold water irrigation during its regenerating and maturing process. The exclusivity of the Casa Pons Rice is also attributed to the use of the traditional seeds and maturing process, which is 30% slower than the process used with other kinds of rice. Best rice for paella. D.O. Calasparra. Cultivated using natural river water. More absorbent rice with a slower cooking process. Recommendations for use: the culinary applications of this rice are many, but most importantly it is the preferred rice in the world for Paella.