FIELD SEASON 2025
Tintoremus Welcomes the 2025 Field Season: Indigo Blue Blooms Again in Extremadura (Spain)
Once again, the fields of Extremadura (Spain) are dyed the deep blue of indigo. On May 17, Tintoremus, the pioneering company in natural dyes for the textile industry, kicked off the 2025 growing season by transplanting Persicaria tinctoria plants—previously grown in a greenhouse—to its fields in Santa María de las Lomas (Cáceres).
Known as the indigo plant, this species is the source of the characteristic blue that distinguishes Tintoremus, a company that unites agriculture, advanced technology, and a commitment to sustainability.
How is a color grown?
At Tintoremus, color isn't manufactured, it's cultivated. Each season begins with the germination of seeds in controlled greenhouses, until they reach the ideal moment for transplanting into the field. From seed to final pigment, Tintoremus manages the entire process with artisanal precision and applied science.
Stages of agricultural cultivation (in the field):
- Germination: seeds sprout in controlled greenhouses.
- Transplanting: they are carefully transferred to the field.
- Growth: For weeks, temperature, humidity, and other key factors are monitored for optimal development.
- Harvesting: leaves are collected at the exact point of ripeness, when the pigment concentration is highest.
Once the leaves are harvested, a second process begins: the transformation of plant material into blue pigment. This is carried out at the Tintoremus facilities, using a traditional method optimized with modern technology.
Stages of the pigment extraction process (in plants):
Fermentation: The leaves are immersed in pools of water under controlled temperature and time conditions. In this phase, the pigment precursor compounds are released.
Oxygenation: After fermentation, the leaves are removed (and composted). The remaining water is carefully oxygenated, which transforms the precursors into indigo pigment.
Filtration and drying: The mixture is filtered, separating the pigment from the water. Finally, the pigment is dried to obtain an indigo powder of unique purity and intensity.
Technology and traceability in every plant
Innovation is present in every square meter. In collaboration with Agrodato, Tintoremus applies precision agriculture with smart sensors and weather stations to monitor temperature, humidity, water consumption, and more in real time.
This optimizes resources, reduces environmental impact, and guarantees full traceability of the pigment, from seed to final product.
The 2025 season is already underway. And once again, the blue of indigo blooms in Extremadura.
Source: The Newsroom (Extract from the full article)
Published: May 26, 2025
