Make Biochar

Become a biochar producer

Producing members are farmers and landowners producing their own Biochar from their pruning residues, using Sierra Preta’s kilns. You can join our community and start producing Biochar right on your land. Become part of Sierra Preta’s mission to promote sustainable agriculture and reduce the environmental impact of agricultural burning.

How It Works

By being a member, you receive training from our team on how to operate the kiln, and we organise the transport of our kilns to you land. Members participate in the running of Sierra Preta through a €30 annual fee and by donating part of the Biochar they produce to a common pot.

Training & Support

You’ll receive comprehensive training materials and hands-on guidance during your first Biochar production run. Our team is available to provide ongoing support, ensuring you’re confident in using the kiln independently.

Kiln Delivery & Setup

After agreeing on a delivery date, we’ll transport the kiln directly to your land. You can use the kiln to process your pruning residues, turning them into valuable Biochar.

Independent Operation

After the initial training, if you’re ready, we’ll leave the kiln with you for as long as you need to process your wood residues. You’ll have the freedom to run the kiln as much as possible, maximizing the use of our equipment.

Contribution to the Common Pot

As part of the Sierra Preta community, we ask that you donate part of the Biochar you produce to our common pot. For the first production run, we request 2/3 of the Biochar be donated. After that, we ask for half of the Biochar produced in each subsequent run.

Maintaining Our Kilns & Equipment:

We handle the transport, maintenance, and operational logistics of our kilns, making it easy for you to focus on producing Biochar. We also organize awareness-raising activities and promote the benefits of Biochar as an alternative to agricultural burning.

Download Application Form to Join Sierra Preta

Contact +34 624 204 166

Become a Producing Member!

Members Benefits

By becoming a member of Sierra Preta, you’re not only gaining access to our kilns and expertise, but you’re also contributing to a larger mission of sustainable land management, renewable energy, and environmental conservation.

Democratic Participation

As a member, you can take part in the democratic decision-making process of Sierra Preta. Your voice matters in shaping the future of our association (participation is optional)

Training and Education

Learn the Biochar production process and become part of a community of like-minded producers.

Shared Resources

Access to our mobile kilns and equipment, maintained by our team for optimal performance

Research Projects

Participate in research initiatives exploring the role of Biochar in renewable energy production, water filtration, and other sustainability efforts