Our main line of business is pine nuts elaboration. As a side product, we obtain pine cones and pine nut shells. This side product is highly appreciated in biomass due to its high calorific value and its humidity index is very low.
Due to our southern latitude in the Huelva province, all the moisture within pine cones and shells are removed by the Andalusian summer sunshine.
The pine cone shell has a calorific value of approximately 3.5 kcal / kg. Correspondingly, the pine nut shell has a calorific value of approximately 4 kcal / kg.