There are many ways of obtaining all the therapeutic properties of plants, although maceration is the process used here. This is an age-old technique for extracting the active substances from plants over the necessary period of time.
Regardless of the origin of the plants (most of them are wild and some are cultivated) all of them have been macerated in the traditional way, in oil or in alcohol, for 40 days and 40 nights, 'a sol y serena' —that is, 'in sunlight and moonlight' as they used to say.
The sun's ultraviolet rays afford strength, enhancing the plants' properties, and the moon cleanses them of impurities. Once this process is completed the preparations are strained, analysed and stored.
All the wild medicinal plants used are harvested from the Baix Empordà (Lower Ampurdan) and Ripollès regions in the province of Gerona and from the Priorat region in Tarragona. The three areas are entirely different in terms of both geography and climate, which means not all the plant species are found in all three regions, or indeed at the same time. The dry Priorat climate is nothing like the fresh coolness of the Ripollès area, and neither of them has anything in common with that of the Baix Empordà, which borders on the coastline of the Costa Brava.