During the span of eight years, significant advancements have been made in developing a plant-based substitute for sulphite. Biotechnology, plant breeding, and innovative research have played crucial roles in this progress. Let's take a look at the major milestones achieved.

Identification of Candidate Plants

Initially, researchers examined various plant species to find ones that naturally produce compounds similar to sulphite. Promising candidates were then studied further.

In vitro tests

Initial laboratory experiments and in vitro testing conducted at preferred wineries.

Continuous Improvement of the product

Extensive tests were conducted to ensure the safety and non-toxicity of the plant-based sulphite replacement for human consumption.

Oenological experiment

Dutch authorization was obtained to conduct a large-scale oenological experiment, along with a patent and collaboration with Geisenheim University.


Trials were conducted globally with an improved formula.


Regulatory approval and market acceptance.

After eight years, the plant-based sulphite replacement has become a commercially viable and widely embraced alternative in the wine industry. It has not only reduced dependency on traditional sulphite sources but has also promoted sustainable and environmentally friendly practices. ESTAAN®'s unique contribution during vinification marks an important milestone in the wine world's pursuit of clean labeling.